2026 Ram 2500 Engine Parts

This table covers the Barometric pressure sensors. Typical signs include a check-engine light for MAP or fuel-rail pressure, or a limp mode under load. A vacuum leak or a clogged reference line will fake a bad pressure sensor. Read more

This group shows a single part: MOPAR 53034091AD.

This table covers the camshafts that open the valves. Read more

4 Camshaft parts for the 2026 Ram 2500 come from 2 brands — MELLING and MOPAR.

The Heavy Duty / Towing section lists 1 option from MELLING — grouped under the catalog's "Heavy Duty / Towing" designation — the notes column spells out what sets them apart. MELLING 23109 is listed in this group.

The High Performance section lists 2 options from MELLING — engineered beyond original-equipment specification. MELLING 23209 is listed in this group.

In the Standard Replacement grade, MOPAR supplies 1 part: built to original-equipment specification. A representative part number is MOPAR 68635422AA.

Listed part numbers: MELLING 23109, MELLING 23209 and MELLING 23309, plus the other parts above.

This table covers the Camshaft bushings. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

This group shows a single part: MOPAR 68443542AA.

This table covers the Camshaft plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

2 Camshaft Plug parts for the 2026 Ram 2500 come from 2 brands — MELLING and MOPAR.

Listed part numbers: MELLING MEP334 and MOPAR 6507663AA.

This table covers the Camshaft Retainer / Thrust plates. Typical signs include warpage, cracks, or a plate that no longer locates the assembly. Confirm which plate the notes describe — backing plates, clutch plates and strike plates are different parts. Read more

2 Camshaft Retainer / Thrust Plate parts are listed for the 2026 Ram 2500, from MELLING and MOPAR.

This group includes MELLING MD200 and MOPAR 53022178AE.

This table covers the connecting rods between each piston and the crankshaft. Read more

This group shows a single part: MOPAR 68447755AA.

This table covers the Connecting Rod bolts. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 6508245AA.

This table covers lower / conversion gasket sets for oil-pan and related joints. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration. Read more

This group shows a single part: MOPAR 68230065AA.

This table covers the crankshafts that turn piston motion into rotation. Read more

This group shows a single part: MOPAR 5038339AE.

This table covers the main bearings that support the crankshaft in the block. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

MOPAR supplies the 4 Crankshaft Main Bearing parts for the 2026 Ram 2500.

Listed part numbers: MOPAR 68102975AB, MOPAR 68102977AB and MOPAR 68102976AB, plus the other parts above.

This table covers the front and rear seals that keep oil in at the crankshaft. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

3 Crankshaft Seal parts are listed for the 2026 Ram 2500, from MOPAR and FEL-PRO.

This group includes FEL-PRO TCS46174, MOPAR 53021585AD and MOPAR 53021335AE.

This table covers the cylinder heads that close the top of the block. Read more

MOPAR supplies both parts for the 2026 Ram 2500.

Part numbers include MOPAR 68630244AA and MOPAR 68630245AA.

This table covers the Cylinder Head Alignment Dowel pins. Read more

This group shows a single part: MOPAR 5203466.

This table covers the head gaskets that seal the block to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

2 Cylinder Head Gasket parts for the 2026 Ram 2500 come from MOPAR.

This group includes MOPAR 5045476AB and MOPAR 5045477AB.

This table covers the Cylinder Head plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 4556020AB.

This table covers the block heaters that warm the coolant or oil in cold weather. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 5149022AC.

This table covers the Engine covers. Read more

7 Engine Cover parts for the 2026 Ram 2500 come from MOPAR. The "Popular" part is MOPAR 68196979AA. 5 parts fit every engine; the other 2 are engine-specific.

Listed part numbers: MOPAR 68196979AA, MOPAR 4861784AB and MOPAR 68196978AA, plus the other parts above.

This table covers full gasket kits covering the joints opened in an engine rebuild. Typical signs include the leaks that sent the engine or gearbox to the bench. Use every gasket the set is meant for that opening — leftover unused pieces usually belong to another configuration. Read more

This group shows a single part: MOPAR 68312489AB.

This table covers the exhaust valves that let combustion gas out of the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 4893173AE.

This table covers the Expansion plugs. Typical signs include a leak at the drain or glow-plug hole, or a plug that has rounded off. Replace the crush washer and torque to the spec in the notes. Read more

2 Expansion Plug parts for the 2026 Ram 2500 come from MOPAR.

Part numbers include MOPAR 68060349AA and MOPAR 6036307AA.

This table covers the crankshaft pulleys / harmonic balancers at the front of the engine. Read more

3 Harmonic Balancer parts for the 2026 Ram 2500 come from MOPAR.

Part numbers include MOPAR 53022083AA, MOPAR 4893285AA and MOPAR 68734984AA.

This table covers the Intake manifolds. Typical signs include an exhaust tick, a vacuum leak, or a gasket that has burned through. Replace the gaskets and hardware; a warped flange will leak with a new gasket alone. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 68585863AA.

This table covers the Intake Manifold actuators. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same. Read more

This group shows a single part: MOPAR 4861795AE.

This table covers the Intake Manifold bolts. Read more

This group shows a single part: MOPAR 6104124AA.

This table covers the gaskets between the intake manifold and the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

This group shows a single part: MOPAR 4627633AA.

This table covers the intake valves that let air (and fuel, on port-injected engines) into the cylinder. Typical signs include a circuit that will not hold, a whistle, or a code for this valve. A stuck valve is often debris. Clean the ports before installing the new one. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 5106392AA.

This table covers the long-block engine assemblies (block, crank, heads). Read more

This group shows a single part: MOPAR 5158128BA.

This table covers the mounts that hold the engine to the chassis. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes. Read more

ANCHOR supplies the 3 Motor Mount parts for the 2026 Ram 2500.

Listed part numbers: ANCHOR 3563, ANCHOR 3569 and ANCHOR 3581.

This table covers the brackets that mount the Motor Mount. Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 68413695AA.

This table covers the isolators in an engine mount. Read more

3 Motor Mount Isolator parts for the 2026 Ram 2500 come from MOPAR.

Part numbers include MOPAR 68362401AB, MOPAR 68349283AB and MOPAR 68663394AB.

This table covers the engine oils listed by grade and specification for this engine. Typical signs include a low-oil lamp, knocking after a long interval, or oil that has gone thin and black well before the next service. Match the viscosity and spec in the notes (and on the filler cap). The tables group grades — they are not interchangeable. Read more

4 Oil parts are listed for the 2026 Ram 2500, from IDEMITSU and MOBIL.

Listed part numbers: IDEMITSU 30041116750, IDEMITSU 30041116953 and MOBIL 112628, plus the other parts above.

This table covers the heat exchangers that cool engine oil. Typical signs include oil at the cooler fittings, or coolant that looks like a milkshake. Pressure-test both circuits after a cooler swap — a leak here mixes oil and coolant. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 4893200AC.

This table covers the Oil Cooler Hose pipes. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 68359800AA.

This table covers the Oil Dipstick tubes. Read more

MOPAR supplies both parts for the 2026 Ram 2500.

Listed part numbers: MOPAR 53021321AK and MOPAR 53021322AG.

This table covers the drain plugs in the oil pan. Read more

MOPAR supplies both parts for the 2026 Ram 2500.

This group includes MOPAR 6504894AA and MOPAR 68174052AB.

This table covers the caps on the oil filler neck. Read more

2 Oil Filler Cap parts are listed for the 2026 Ram 2500, from GATES and MOTORAD.

Part numbers include GATES 31299 and MOTORAD MO111.

This table covers the oil filters that screw onto this engine's filter mount. Typical signs include low oil pressure after a service, or a filter that will not spin off because the old gasket stayed on the block. Lube the new gasket and tighten to the spec on the box; a double-gasket install dumps the sump on the first drive. Read more

10 Oil Filter parts are listed for the 2026 Ram 2500, from WIX, ACDELCO, FVP and 5 other brands. ACDELCO PF48 carries the "Popular" badge.

In the Economy grade, FVP, PRO-TEC and PUROLATOR supply 3 parts: the catalog's value-priced group. A representative part number is FVP R7060.

In the High Performance / Heavy Duty grade, MOBIL and WIX supply 2 parts: grouped under the catalog's "High Performance / Heavy Duty" designation — the notes column spells out what sets them apart. A representative part number is MOBIL M1113A.

The Standard Replacement section: 5 options from ACDELCO, WIX, HASTINGS / BALDWIN and 1 other brand. ACDELCO PF48 is listed in this group.

This table covers the Oil Filter adapters. Read more

This group shows a single part: MOPAR 4893181AC.

This table covers the Oil Filter Adapter Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

This group shows a single part: MOPAR 68241151AA.

This table covers the Oil Level Sensor Gasket O-rings. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 53034112AA.

This table covers the oil pans that hold the engine's oil sump. Read more

3 Oil Pan parts for the 2026 Ram 2500 come from 2 brands — MOPAR and SPECTRA PREMIUM.

Listed part numbers: MOPAR 4893207AB, MOPAR 4893207AD and SPECTRA PREMIUM CRP34A.

This table covers the Oil pumps. Typical signs include noise from the pump, no pressure, or fluid that never arrives at the outlet. Prime or fill the pump as the notes require. A dry start is a common way to kill a new unit. Read more

3 Oil Pump parts are listed for the 2026 Ram 2500, from MELLING and MOPAR.

Listed part numbers: MELLING M462, MELLING M462388S and MOPAR 5038398AE.

This table covers the pickup tubes and screens that feed the oil pump. Read more

2 Oil Pump Pickup Tube / Screen parts for the 2026 Ram 2500 come from 2 brands — MELLING and MOPAR.

Part numbers include MELLING 388S and MOPAR 4893416AA.

This table covers the O-rings that seal the oil-pump pickup tube. Typical signs include a seep at a fitting or a housing that weeps after a service. Lube the new O-ring with the fluid it will see, and do not roll it into the groove. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 53020861.

This table covers the Oil Temperature senders. Read more

This group shows a single part: MOPAR 68444792AA.

This table covers the pistons that travel in each cylinder. Typical signs include knock, blow-by, or a cylinder that will not hold compression. Piston work is a short-block job. Match bore, pin and ring pack in the notes — not the photo. Read more

3 Piston parts for the 2026 Ram 2500 come from MOPAR.

This group includes MOPAR 68230025AB, MOPAR 68230024AB and MOPAR 68733669AA.

This table covers the rings that seal each piston to the cylinder wall. Read more

2 Piston Ring parts for the 2026 Ram 2500 come from MOPAR.

Listed part numbers: MOPAR 68230035AA and MOPAR 68448083AA.

This table covers the pushrods that transfer lifter motion to the rocker arms. Read more

4 Push Rod parts for the 2026 Ram 2500 come from 2 brands — MELLING and MOPAR.

This group includes MELLING MPR667, MELLING MPR668 and MOPAR 5045516AA and the remaining parts above.

This table covers the rocker arms that transfer cam motion to the valves. Read more

MELLING supplies both parts for the 2026 Ram 2500.

This group includes MELLING MRK1553E and MELLING MRK1552I.

This table covers the timing chains that keep the cams in time with the crank. Read more

2 Timing Chain parts for the 2026 Ram 2500 come from 2 brands — MELLING and MOPAR.

Part numbers include MELLING 750 and MOPAR 53022316AC.

This table covers kits that group a timing chain with the related tensioners and guides. Read more

MELLING supplies the 3 Timing Chain & Component Kit parts for the 2026 Ram 2500.

Economy: 1 part, from MELLING. A representative part number is MELLING 3750SHVVT.

The Standard Replacement section: 2 options from MELLING. MELLING 3750SX is listed in this group.

Listed part numbers: MELLING 3750SHVVT, MELLING 3750SX and MELLING 3750S.

This table covers the gaskets that seal the Timing Chain Cover. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

This group shows a single part: MOPAR 53021521AD.

This table covers the guides and dampers that keep the timing chain on its path. Read more

2 Timing Chain Guide / Damper parts for the 2026 Ram 2500 come from 2 brands — MELLING and MOPAR.

Part numbers include MELLING BG5599 and MOPAR 4893429AA.

This table covers the tensioners that keep the timing chain taut. Typical signs include belt flutter, a chirp that returns after a new belt, or an arm that no longer damps. Replace the tensioner with the belt at higher mileage. Read more

2 Timing Chain Tensioner parts are listed for the 2026 Ram 2500, from MELLING and MOPAR.

Listed part numbers: MELLING BT7002 and MOPAR 53022115AH.

This table covers the Timing Cover bolts. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 6506332AA.

This table covers the crankshaft sprockets that drive the timing chain or belt. Read more

2 Timing Crank Sprocket parts are listed for the 2026 Ram 2500, from MELLING and MOPAR.

This group includes MELLING S949 and MOPAR 53022317AC.

This table covers the Valve covers. Read more

3 Valve Cover parts for the 2026 Ram 2500 come from 2 brands — MOPAR and DORMAN.

Part numbers include DORMAN 264495, MOPAR 68360667AB and MOPAR 53022085AD.

This table covers the gaskets that seal the valve cover to the cylinder head. Typical signs include seepage at the joint, a burnt-oil smell, or a leak that appears only after a long drive. Clean both flanges and torque in the sequence the notes or the manual call for. Read more

FEL-PRO supplies both parts for the 2026 Ram 2500.

Listed part numbers: FEL-PRO VS50625R and FEL-PRO VS50625R1.

This table covers the lifters / tappets that transfer cam motion to the valves. Read more

6 Valve Lifter parts are listed for the 2026 Ram 2500, from MOPAR and MELLING. MELLING JBK8522 carries the "Popular" badge.

Part numbers include MELLING JBK8522, MOPAR 5038786AD and MELLING JBK8523, among others listed above.

This table covers the guides that keep each lifter aligned. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 53021727AC.

This table covers the springs that close each intake and exhaust valve. Typical signs include a sagging corner, a broken coil, or a clunk from the spring pocket. Replace springs in axle pairs and inspect the seats. Read more

This group shows a single part: MOPAR 68080909AB.

This table covers the Valve Spring retainers. Read more

This group shows a single part: MOPAR 53021676AB.

This table covers the seals on each valve stem that control oil into the guides. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

One part is listed for the 2026 Ram 2500 — MOPAR 53022090AB.

This table covers the oil-control solenoids that command the cam phasers. Typical signs include a door or range that will not move, or a click with no motion. Confirm the command signal before replacing the actuator — a failed module looks the same. Read more

3 Variable Valve Timing (VVT) Solenoid / Actuator parts are listed for the 2026 Ram 2500, from MELLING, MOPAR and STANDARD MOTOR PRODUCTS.

This group includes MELLING VCTS1010, MOPAR 53022338AB and STANDARD MOTOR PRODUCTS VVT258.

This table covers the cam phaser sprockets used by the variable-valve-timing system. Read more

3 Variable Valve Timing (VVT) Sprocket parts are listed for the 2026 Ram 2500, from DORMAN, MELLING and STANDARD MOTOR PRODUCTS.

Economy: 1 part, from DORMAN. A representative part number is DORMAN 916595.

The Standard Replacement section: 2 options from MELLING and STANDARD MOTOR PRODUCTS. MELLING VCTA1010H is listed in this group.

Listed part numbers: DORMAN 916595, MELLING VCTA1010H and STANDARD MOTOR PRODUCTS VVT604.

This table covers the Variable Valve Timing (VVT) Sprocket bolts. Read more

2 Variable Valve Timing (VVT) Sprocket Bolt parts for the 2026 Ram 2500 come from 2 brands — CLOYES and MELLING.

Listed part numbers: CLOYES VCB121 and MELLING VCTB1010.