Parts

Brand New Cummins ISB 5.9 24 Valve LOADED Enhanced Cylinder Head They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. If you have been a victim before of a cracked cylinder head, you know just how costly that it can be! Don't take the chance by buying an OE reman cylinder head that is bound to crack again. Upgrade with our Enhanced Performance Cylinder head and enjoy the peace of mind while hauling across the country! This performance cylinder head is an upgrade from the standard cylinder head. On top of the interior upgrades to the actual casting itself, the intake valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. OE Reference 3937729, 3942628, 3943627, 3943628, 3943892, 3944991, 3944992, 3944993, 3944994, 3944995, 3945524, 3946202, 3957403, 3990135, 3991771, 3991772, 3991773, 5361587

Brand New Cummins ISB 6.7L LOADED Enhanced Cylinder Head They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. If you have been a victim before of a cracked cylinder head, you know just how costly that it can be! Don't take the chance by buying an OE reman cylinder head that is bound to crack again. Upgrade with our Enhanced Performance Cylinder head and enjoy the peace of mind while hauling across the country! This performance cylinder head is an upgrade from the standard cylinder head. On top of the interior upgrades to the actual casting itself, the intake valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. OE Reference 3954673, 3957384, 3957385, 3957386, 3957408, 3957958, 3957959, 3958170, 3965998, 3965999, 3968185, 3968186, 3969071, 3977222, 3977225, 3977226, 3977227, 3977228, 4895759, 4895765, 4931564, 4931645, 4933955, 4936081, 4955212, 4981626, 4981627, 5270036, 5282703, 5282721, 5361595RX

Brand New Cummins ISB 6.7 24 Valve LOADED Enhanced Cylinder Head with Firing Ring They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. If you have been a victim before of a cracked cylinder head, you know just how costly that it can be! Don't take the chance by buying an OE reman cylinder head that is bound to crack again. Upgrade with our Enhanced Performance Cylinder head and enjoy the peace of mind while hauling across the country! In addition to this, the cylinder head has a stainless steel fire ring machine right into the deck of this cylinder head to avoid any chance of blowing a head gasket, which is a common failure in engines that are tuned to higher horse power. This allows you to turn up the heat and pressure with the peace of mind knowing that you have the heaviest duty head on the market under your hood. This performance cylinder head is an upgrade from the standard cylinder head. On top of the interior upgrades to the actual casting itself, the intake valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. OE Reference 3954673, 3957384, 3957385, 3957386, 3957408, 3957958, 3957959, 3958170, 3965998, 3965999, 3968185, 3968186, 3969071, 3977222, 3977225, 3977226, 3977227, 3977228, 4895759, 4895765, 4931564, 4931645, 4933955, 4936081, 4955212, 4981626, 4981627, 5270036, 5282703, 5282721, 5361595RX

Brand New Cummins ISB 5.9L 24 Valve LOADED Enhanced Cylinder Head with SS Firing Ring They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. If you have been a victim before of a cracked cylinder head, you know just how costly that it can be! Don't take the chance by buying an OE reman cylinder head that is bound to crack again. Upgrade with our Enhanced Performance Cylinder head and enjoy the peace of mind while hauling across the country! In addition to this, the cylinder head has a stainless steel fire ring machine right into the deck of this cylinder head to avoid any chance of blowing a head gasket, which is a common failure in engines that are tuned to higher horse power. This allows you to turn up the heat and pressure with the peace of mind knowing that you have the heaviest duty head on the market under your hood. This performance cylinder head is an upgrade from the standard cylinder head. On top of the interior upgrades to the actual casting itself, the intake valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. OE Reference 3937729, 3942628, 3943627, 3943628, 3943892, 3944991, 3944992, 3944993, 3944994, 3944995, 3945524, 3946202, 3957403, 3990135, 3991771, 3991772, 3991773, 5361587

Brand New Cummins M11 LOADED Enhanced Cylinder Head They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. If you have been a victim before of a cracked cylinder head, you know just how costly that it can be! Don't take the chance by buying an OE reman cylinder head that is bound to crack again. Upgrade with our Enhanced Performance Cylinder head and enjoy the peace of mind while hauling across the country! This performance cylinder head is an upgrade from the standard cylinder head. On top of the interior upgrades to the actual casting itself, the intake valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. OE Reference 2864012, 2864013, 2864016, 2864024, 2864025, 2864028, 2864033, 3103482, 3418026, 4952444, 4952446, 4952449, 4952455, 4952828, 4952829, 4952831, 4952832, 4952834, 4952837, 4952840, 4962454, 4962777, 4962779

Brand New Cummins ISM LOADED Enhanced Cylinder Head They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. If you have been a victim before of a cracked cylinder head, you know just how costly that it can be! Don't take the chance by buying an OE reman cylinder head that is bound to crack again. Upgrade with our Enhanced Performance Cylinder head and enjoy the peace of mind while hauling across the country! This performance cylinder head is an upgrade from the standard cylinder head. On top of the interior upgrades to the actual casting itself, the intake valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. OE Reference 2864012, 2864013, 2864016, 2864024, 2864025, 2864028, 2864033, 3103482, 3418026, 4952444, 4952446, 4952449, 4952455, 4952828, 4952829, 4952831, 4952832, 4952834, 4952837, 4952840, 4962454, 4962777, 4962779

Brand New Caterpillar 3406B LOADED Stage 2 Cylinder Head with Square ports They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. This stage 2 cylinder head is an upgrade from the standard cylinder head. The difference is that the exhaust valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. OE Reference: 0R-0911 0R-0977 0R-1158 0R-1445 0R-3671 0R-3673 0R-3674 0R-3676 0R-3719 0R-4918 0R-4920 0R0911 0R0977 0R1158 0R1363 0R1445 0R2173 0R2671 0R2880 0R3033 0R3034 0R3671 0R3673 0R3674 0R3676 0R3719 0R4918 0R4920 0R9472 0R9473 10R8845 10R8846 110-5095 110-5096 110-5097 110-5099 1105095 1105096 1105096RN 1105097 1105099 1220086 123-7335 1237335 125-7094 1257094 131-0411 131-4339 1310411 1314339 145-3216 1453216 156-9137 156-9138 1569137 1569138 1599455 172-0836 1720836 199-3208 1993208 20R-0828 20R0828 223-6519 2236519 2W5800 2W5802 2W5803 3276910 3504422 394-0915 3940915 4N-2270 4N2270 4W1900 4W9560 4W9562 7C8130 7C8141 7C8153 7E5859 7E5860 7E8758 7E8760 7E8762 7W-0006 7W-0007 7W-0009 7W-0010 7W-2200 7W-2202 7W-2203 7W-2233 7W-2472 7W-2473 7W-2474 7W0006 7W0007 7W0009 7W0010 7W1063 7W2200 7W2202 7W2203 7W2233 7W2234 7W2447 7W2472 7W2473 7W2474 8N7172 8N7173 9Y0055 FP-7W0009 FP7W0009 HCT2W5800

Brand New Caterpillar C13 LOADED Stage 2 Cylinder Head They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. This stage 2 cylinder head is an upgrade from the standard cylinder head. The difference is that the exhaust valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. OE Reference 10R2602 10R3394 10R6392 10R9922 20R1952 2240878 2408271 2454030 2454031 2496672 2572168 2572170 2574095 2655263 2893211 3009511 3050617 3086358 3358322 3453752 4842155 4866227 5945181 10R-2602 10R-3394 10R-6392 10R-9922 20R-1952 224-0878 240-8271 245-4030 245-4031 249-6672 257-2168 257-2170 257-4095 265-5263 289-3211 300-9511 305-0617 308-6358 335-8322 345-3752 484-2155 486-6227 594-5181

Brand New C15 LOADED Stage 2 Cylinder Head This head will work with both Acert and non-Acert engines alike! From 3406E to C15, to Acert applications you are all set! They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. This stage 2 cylinder head is an upgrade from the standard cylinder head. The difference is that the exhaust valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure.

Brand New Caterpillar C15 LOADED Universal Stage 4 Cylinder Head. This head will work with both Acert and non-Acert engines alike! From 3406E to C15, to Acert applications you are all set! Our castings are engineered, designed, and assembled in the U.S.A. They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. This cylinder head is the top-shelf item for your Caterpillar 3406E/C15 Engine. This super duty cylinder head, similar to the stage 2 and 3 heads, is loaded with exhaust AND intake upgraded inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. In addition to this, the cylinder head has a stainless steel fire ring machine right into the deck of this cylinder head to avoid any chance of blowing a head gasket, which is a common failure in engines that are tuned to higher horse power. This allows you to turn up the heat and pressure with the peace of mind knowing that you have the heaviest duty head on the market under your hood.

Brand New Caterpillar 3406E LOADED Universal Stage 4 Cylinder Head. This head will work with both Acert and non-Acert engines alike! From 3406E to C15, to Acert applications you are all set! Our castings are engineered, designed, and assembled in the U.S.A. They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. This cylinder head is the top-shelf item for your Caterpillar 3406E/C15 Engine. This super duty cylinder head, similar to the stage 2 and 3 heads, is loaded with exhaust AND intake upgraded inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. In addition to this, the cylinder head has a stainless steel fire ring machine right into the deck of this cylinder head to avoid any chance of blowing a head gasket, which is a common failure in engines that are tuned to higher horse power. This allows you to turn up the heat and pressure with the peace of mind knowing that you have the heaviest duty head on the market under your hood.

Brand New C15 Acert LOADED Universal Stage 3 Cylinder Head. This head will work with both Acert and non-Acert engines alike! From 3406E to C15, to Acert applications you are all set! They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. This stage 3 cylinder head is an upgrade from the stage 2 cylinder head. The difference is that BOTH the exhaust AND intake valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure.

Brand New 3406E LOADED Universal Stage 3 Cylinder Head. This head will work with both Acert and non-Acert engines alike! From 3406E to C15, to Acert applications you are all set! They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. This stage 3 cylinder head is an upgrade from the stage 2 cylinder head. The difference is that BOTH the exhaust AND intake valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure.

Brand New C15 LOADED Universal Stage 3 Cylinder Head. This head will work with both Acert and non-Acert engines alike! From 3406E to C15, to Acert applications you are all set! They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. This stage 3 cylinder head is an upgrade from the stage 2 cylinder head. The difference is that BOTH the exhaust AND intake valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure.

Brand New C10 LOADED Stage 2 Cylinder head. They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. This stage 2 cylinder head is an upgrade from the standard cylinder head. The difference is that the exhaust valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. Replaces 148-2144 0R-7439 0R-8255 0R-8395 0R-8434 0R-8754 0R-8756 0R-9749 0R-9750 0R7439 0R7440 0R8255 0R8395 0R8434 0R8754 0R8755 0R8756 0R9748 0R9749 0R9750 10R-8883 10R-8884 10R-8887 10R-8888 10R8883 10R8884 10R8887 10R8888 116-1079 116-1084 116-1085 116-5369 1161079 1161084 1161085 1165369 126-0140 126-0141 126-0142 1260140 1260141 1260142 130-0867 130-0868 130-0869 130-0911 130-867 1300867 1300868 1300869 1300911 132-3208 132-3245 132-3251 132-3252 132-7052 1323208 1323245 1323251 1323252 1327052 133-3208 133-7052 1333208 1337052 138-1995 138-2007 1381995 1382007 144-2950 144-2967 144-2968 1442950 1442967 1442968 148-2144 148-2145 148-2148 148-2149 148-2150 1482143 1482144 1482145 1482148 1482149 1482150 179-9458 179-9459 179-9461 179-9462 1799458 1799459 1799461 1799462 20R2679 215-7775 2157775 216-6951 2166951 3375639 3375640 360440

Brand New C12 LOADED Stage 2 Cylinder head. They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. This stage 2 cylinder head is an upgrade from the standard cylinder head. The difference is that the exhaust valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. Replaces 148-2144 0R-7439 0R-8255 0R-8395 0R-8434 0R-8754 0R-8756 0R-9749 0R-9750 0R7439 0R7440 0R8255 0R8395 0R8434 0R8754 0R8755 0R8756 0R9748 0R9749 0R9750 10R-8883 10R-8884 10R-8887 10R-8888 10R8883 10R8884 10R8887 10R8888 116-1079 116-1084 116-1085 116-5369 1161079 1161084 1161085 1165369 126-0140 126-0141 126-0142 1260140 1260141 1260142 130-0867 130-0868 130-0869 130-0911 130-867 1300867 1300868 1300869 1300911 132-3208 132-3245 132-3251 132-3252 132-7052 1323208 1323245 1323251 1323252 1327052 133-3208 133-7052 1333208 1337052 138-1995 138-2007 1381995 1382007 144-2950 144-2967 144-2968 1442950 1442967 1442968 148-2144 148-2145 148-2148 148-2149 148-2150 1482143 1482144 1482145 1482148 1482149 1482150 179-9458 179-9459 179-9461 179-9462 1799458 1799459 1799461 1799462 20R2679 215-7775 2157775 216-6951 2166951 3375639 3375640 360440

Brand New Caterpillar 3406C LOADED Stage 2 Cylinder Head with ROUND PORTS. This stage 2 cylinder head is an upgrade from the standard cylinder head. The difference is that the exhaust valves in this cylinder head have all been upgraded to inconel valves. This major performance improvement increases the capacity of the valves to endure higher temperatures as well as heightened pressure. They are better than OEM quality containing 5% more nickel content in the casting material. This additional nickel content prevents the cylinder head from cracking in between the valves. Additionally, the coolant passages have been enlarged by 30%, and inner ribs have been reinforced to reduce heat stress. OE Reference 0R-0832 0R-0977 0R-1445 0R-2097 0R-2145 0R-3670 0R-3673 0R-3676 0R-3715 0R-3718 0R-3719 0R-4883 0R-4884 0R-4886 0R-4888 0R-4918 0R-4920 0R-4922 0R0832 0R0977 0R1445 0R2097 0R2145 0R3670 0R3673 0R3676 0R3715 0R3718 0R3719 0R4883 0R4884 0R4886 0R4888 0R4918 0R4920 0R4922 105-1528 1051528 10R-7438 10R-9383 10R7438 10R9383 110-2096 110-5095 110-5096 110-5097 110-5099 110-5100 1102096 1105095 1105096 1105097 1105099 1105100 115-2362 115-2364 115-2366 1152362 1152364 1152366 119-4854 1194854 141-8638 1418638 1W1506 1W1509 1W5282 1W5678 1W-1506 1W-1509 1W-5282 1W-5678 20R-1103 20R-5712 20R1103 20R5712 214-1665 214-1667 2141665 2141667 350-4421 3504421 360-430 360-432 360430 360432 E360436 360436 E360437 360437 394-0915 3940915 4N-0267 4N-1043 4N-2270 4N-5079 4N0267 4N1043 4N2270 4N5079 4W-5317 4W5317 6N-9937 6N-9938 6N9937 6N9938 7E-0970 7E0970 7N-1300 7N-1303 7N1300 7N1303 7W-0007 7W-0009 7W-0010 7W-2202 7W0007 7W0009 7W0010 7W2202 9Y-3775 9Y3775 9Y-3777 9Y3777 N110-5100 N1105100

(Used) 2003 Mack AC HEAD, Serial Number: 3M1831, CID: 728, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921