Oil Filter Specification
Verified OEM & Service Reference1985 Chevrolet Silverado 1500 3.0L Duramax I6 Diesel (LM2 / LZ0) — Oil Filter
Recommended interval: Replace at every engine oil change
Engine / Trim Variant
OEM Part Number
55495105 (PF66)
Quick Purchase
Check verified fitment on Amazon
Technical Specifications
| Drain Plug Torque | 18 ft-lb (25 Nm) |
|---|---|
| Drain Plug Size | 15mm |
Compatible Aftermarket Options
Direct OEM cross-references- Buy ACDelco PF66 on AmazonACDelcoPF66
Search query: ACDelco PF66 oil filter Duramax
- Buy Wix WL10352 on AmazonWixWL10352
Search query: Wix WL10352 oil filter 3.0 Duramax
Oil Filter Fitment by Engine / Trim (1985 Chevrolet Silverado 1500)
| Engine / Trim | Oil Spec & Capacity | OEM Oil Filter |
|---|---|---|
| 5.3L EcoTec3 V8 | 0W-20 • 8.0 qt (7.6L) | 12706595 (PF63) |
| 6.2L EcoTec3 V8 | 0W-20 • 8.0 qt (7.6L) | 12706595 (PF63) |
| 3.0L Duramax Turbo-Diesel | 0W-20 • 7.0 qt (6.6L) | 55495105 (PF66) |
DIY Fitment & Verification Checklist for 1985 Chevrolet Silverado 1500
- Confirm your engine code or trim variant above before ordering parts, as mid-year production changes can affect oil filter fitment.
- When purchasing OEM or aftermarket brands (Motorcraft, ACDelco, Mopar, Wix, Fram, Mobil 1, Bosch, NGK), cross-check the Amazon Garage Confirmed Fit badge with your 17-digit VIN.
- Always consult your 1985 Chevrolet Silverado 1500 owner's manual for exact torque specs and fluid service intervals.
Sources: NHTSA vPIC & OEM Service SpecificationsReport an inaccurate spec or part number
Frequently Asked Questions
What is the OEM oil filter specification for a 1985 Chevrolet Silverado 1500?
The primary OEM oil filter part number / specification for the 1985 Chevrolet Silverado 1500 3.0L Duramax I6 Diesel (LM2 / LZ0) is 55495105 (PF66).
Which aftermarket oil filter brands fit the 1985 Chevrolet Silverado 1500?
Compatible aftermarket options include ACDelco PF66, Wix WL10352.