Assembly Lube, Grease & Engine Sealants
Assembly lube protects compatible engine and drivetrain surfaces during assembly and the first moments of operation before normal oil circulation provides full protection. Use the correct product for the job, whether that’s engine assembly grease, camshaft assembly lube, high-pressure grease, spline grease, a fastener assembly lubricant, or an engine sealant for a separate repair need. Behrent’s carries engine-building and repair products from trusted brands including Driven, ARP, and Moroso. Choose each lubricant or sealant according to the component manufacturer’s specifications because bearing lubes, spline greases, torque lubricants, and sealants are designed for different jobs and shouldn’t be treated as interchangeable.
Shop Behrent’s for Assembly Lube
Shop assembly lube and related engine-building products for bearings, camshafts, splines, fasteners, and approved repair applications. Compare component compatibility, temperature range, load requirements, application method, and manufacturer instructions before choosing a formula.
Item Number: ARP100-9908
$1.87
Same Day Shipping If Ordered Before 5pm
Item Number: ARP100-9909
$8.92
Same Day Shipping If Ordered Before 5pm
Item Number: JGR00728
$33.59
Same Day Shipping If Ordered Before 5pm
Item Number: JGR00732
$6.49
Same Day Shipping If Ordered Before 5pm
Item Number: JGR50050
$13.49
Same Day Shipping If Ordered Before 5pm
Item Number: JGR70070
$54.97
Same Day Shipping If Ordered Before 5pm
Item Number: ALL78246
$12.99
Same Day Shipping If Ordered Before 5pm
Item Number: MOR35520
$29.99
Usually Ships In 3-5 Business Days
Item Number: ARP100-9910
$23.05
Usually Ships In 3-5 Business Days
Item Number: ARP100-9911
$34.67
Usually Ships In 3-5 Business Days
Item Number: MOR35500
$29.99
Usually Ships In 3-5 Business Days
Item Number: EAR184004
$18.95
Usually Ships In 3-5 Business Days
How to Choose Assembly Lube, Grease, or Engine Sealant
Match the product to the component and the job it needs to do. Assembly lubricants protect specified contact surfaces during assembly and startup, while spline greases, fastener lubricants, and engine sealants serve different purposes.
| Product Type | Best For | What to Verify |
|---|---|---|
| Engine assembly lube or engine assembly grease | Protecting approved bearings, bushings, and other contact surfaces during assembly and initial startup | Approved components, engine-oil compatibility, application amount, and storage time before startup |
| Camshaft assembly lube | Protecting approved camshaft and valvetrain contact surfaces during installation and initial operation | Camshaft and lifter type, application points, and break-in requirements |
| High-pressure grease | Approved components exposed to concentrated loads or limited contact areas | Load rating, temperature range, component compatibility, and whether the grease could block an oil passage |
| Spline grease | Compatible clutch, transmission, or driveline splines | Spline material, operating temperature, application amount, and proximity to clutch or other friction surfaces |
| Fastener assembly lubricant | Providing controlled friction on specified threads and under-head surfaces | The exact lubricant used to calculate the published torque specification |
| Engine sealant | Sealing approved leaks or joints according to the product formula | Application type, fluid-system compatibility, curing requirements, and whether the repair is temporary or permanent |
What to Check Before Choosing an Assembly Product
The safest choice is the one specified for the exact component, not simply the thickest or most aggressive lubricant available.
- Component type: Match the product to the bearing, camshaft, spline, fastener, or repair area
- Compatibility: Confirm the lubricant works with the engine oil, materials, seals, and surrounding components
- Load and temperature: Check that the formula is approved for the expected operating conditions
- Application amount: Follow the product instructions rather than assuming more lubricant provides more protection
- Startup or break-in requirements: Some components need specific procedures after assembly
- Torque procedures: Use the lubricant specified by the fastener manufacturer because lubrication affects clamping force
How to Use Assembly Lube During an Engine Build
Use assembly lube wherever the engine or component manufacturer specifies it. Its job is to leave a protective film on critical contact surfaces during assembly and initial startup before pressurized oil reaches all of those areas.
- Clean the parts and oil passages before applying lubricant.
- Choose a formula approved for the specific bearing, camshaft, bushing, gear, or other component.
- Apply a thin, complete coating to the specified contact surface.
- Keep excess material out of oil passages and areas where it could restrict oil flow.
- Follow separate instructions for bearings, camshafts, piston components, seals, and fasteners.
- Prime the oiling system before startup when required.
- Follow the engine or component manufacturer’s specified startup and break-in procedure.
Frequently Asked Questions About Assembly Lube & Engine Grease
Can engine oil or grease replace assembly lube?
Not as a universal substitute. Engine oil may drain away while an assembled engine sits before startup, and general-purpose grease may not be compatible with the component, engine oil, or required clearances. Use the lubricant specified by the engine, camshaft, bearing, or fastener manufacturer.
How much assembly lube should you use?
Use enough to create a continuous film on the specified contact surface. More isn’t automatically better because excess material can migrate or obstruct an oil passage, so follow the product and component instructions rather than relying on one universal amount.
What is spline grease?
It’s formulated for compatible splined connections exposed to sliding motion, pressure, or load, such as specified clutch, transmission, and driveline splines. Apply it sparingly and keep it away from clutch discs and other friction surfaces. Don’t assume every high-viscosity or extreme-pressure grease is suitable for every spline.
How long do engine sealants last?
Service life depends on the sealant type, severity of the leak, surface preparation, temperature, pressure, and fluid exposure. Some products are intended for temporary leak management, while others may provide a longer-lasting repair when used within their specifications. Follow the product instructions, and use a mechanical repair when a crack, failed gasket, or damaged component requires one.
When should you use high-pressure grease?
Use it only on approved components exposed to concentrated loads, sliding contact, or limited contact areas. The correct application depends on the grease formulation and component specifications, so don’t use it on internal engine parts unless the component or lubricant manufacturer specifically approves that use.