Dorman - Autograde Engine Core Plug P/N:555-002
Secure each connecting rod cap to its rod with the Dorman - Autograde Connecting Rod Nut, part number 635-002. It is a Type 2 nut sized 3/8-24 x 9/16 in. and comes in a 25-piece pack. It fits many vehicles, among them the 1988-1999 Chevrolet C1500 4.3L / 5.0L / 5.7L / 7.4L, 1975-1996 Ford F-150 4.9L / 5.8L / 5.9L / 6.4L / 6.6L / 7.5L and 1988-1999 Chevrolet K1500 4.3L / 5.0L / 5.7L. See the "Vehicles it fits" section for the full list of applications and engines.
A connecting rod nut threads onto the rod bolt and holds the rod cap against the connecting rod around the crankshaft journal. Rod nuts are commonly replaced when an engine is rebuilt or the rod bearings are serviced.
Package contents: 25 nuts. Country of origin: China.
The number of nuts required varies by engine and application. Consult the vehicle service information for the correct torque specifications and for whether the rod fasteners may be reused.
Interchange: 225854 · 3866766
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
What does an engine connecting rod nut do?
It threads onto the connecting rod bolt and holds the rod cap against the rod around the crankshaft journal, which keeps the rod bearing assembly clamped together.
Will the Dorman 635-002 fit my 1988-1999 Chevrolet C1500 4.3L / 5.0L / 5.7L / 7.4L?
It is listed for the 1988-1999 Chevrolet C1500 4.3L / 5.0L / 5.7L / 7.4L, among many other vehicles. Check the "Vehicles it fits" section to confirm your year and engine.
What size is this rod nut?
The manufacturer lists it as a Type 2 connecting rod nut, 3/8-24 x 9/16 in.
How many nuts come in the package?
The package contains 25 nuts. The number your engine needs varies by application, so check the "Vehicles it fits" section for your vehicle.
When should connecting rod nuts be replaced?
They are commonly replaced during engine rebuilds, during rod bearing service, or when an original nut is missing or fatigued. Follow the service information for torque specs and for whether rod fasteners may be reused.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.