RAM 2500 Engine Blocks & Accessories Engines & Components

Mopar Replacement Crankshaft Rear Oil Seal Retainers

Mopar Replacement rear main seal housings are designed to hold the main oil seal on the rear of the crankshaft. They are manufactured from durable aluminum and are ideal for replacing damaged housings or building a new project from scratch.

5.0 out of 5 stars ( 1 )

$103.99

Cummins by Mopar Replacement Bellhousing Dowel Pins

Cummins by Mopar bellhousing dowel pins make perfect alignment possible. These pins will provide the right fit and function, so the install of your bellhousing will go easier. When working with your diesel build, Mopar offers all the parts—even the small ones—to make your job a success.

Not Yet Reviewed

$42.99

Melling Engine Expansion Plug Kits

Melling engine expansion plug kits come with everything needed to replace the leaky "freeze" plugs on your current engine. When you have the motor out of the chassis, it's the ideal time to update the plugs before they start leaking. Order the kit recommended for your application—and stay ahead of the game with Melling!

3.93 out of 5 stars ( 15 )

$10.99

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$31.99

Melling Freeze Plugs

Seal up the casting core holes in your engine block and heads with Melling freeze plugs. They're manufactured from a variety of quality materials—such as brass, steel, and stainless steel—and offered in different diameters and depths to fit your specific application. These expansion plugs help protect against cracks caused by the pressure of frozen coolant and in regular operation will ensure that all vital fluids stay in the engine, where they belong. They are available for a wide range of makes and models, and can be ordered individually or in a multi-piece kit.

4.55 out of 5 stars ( 179 )

$12.99

Cummins by Mopar Clutch Housing Locating Dowels

Cummins by Mopar clutch housing locating dowels align your block to clutch housing. And, to choose the perfect match for your Cummins engine setup, choose Mopar replacements. They offer the proper fit and function that will make your job easier and your install a success.

Not Yet Reviewed

$14.99

Pacific Performance Engineering Main Stud Kits

PPE main stud kits are engineered to provide superior bottom-end strength and reliability for high-performance diesel and gasoline engines. Manufactured from premium chrome-moly alloy steel and independently tested to deliver over 230,000 psi tensile strength, these main stud kits help secure main bearing caps, maintain precise crankshaft alignment, and reduce the risk of cap walk, bearing wear, and catastrophic engine failure under high horsepower and boost conditions. Each kit features precision centerless-ground, thread-rolled studs with a durable black oxide finish, along with hardened washers, high-strength nuts, and assembly lubricant for accurate torque loading and consistent clamping force. Designed for popular Duramax, Cummins, Power Stroke, and GM LS engine applications, these main stud kits from PPE provide the strength, durability, and confidence demanded by performance enthusiasts, engine builders, and heavy-duty towing applications.

Not Yet Reviewed

$179.99

Mopar Replacement Engine Block Freeze Plugs

Mopar Replacement engine block freeze plugs are manufactured from zinc coated steel that meets OEM standards. These heavy-duty expansion plugs are available in sizes to fit the various outlets in your engine.

Not Yet Reviewed

$10.99

Enginetech Engine Expansion Plug Kits

Enginetech offers engine expansion plug kits for a variety of car, truck, SUV, high performance, and marine applications. Machined from brass or steel, the kits include a variety of sizes to seal whatever ports need to be closed off. The plugs are produced in accordance with factory specs to ensure proper fit and performance. They meet or exceed OE quality standards. Order the kit recommended for your engine. Expansion plugs (or freeze plugs) serve two primary purposes: to block coolant leaks from internal passages, and to protect the engine block from cracking if the coolant inside freezes and expands. The plugs are designed to "pop out" under the pressure of expanding ice, preventing more severe damage, like a cracked block.

5.0 out of 5 stars ( 1 )

$11.99