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Engine Rocker Arm Nut (Melling) for 1987-1999 Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, & Pontiac NEW

Out of Stock
$ 24 .72
120-DayReturns
LifetimeWarranty
100%Money-Back

Product Notes Read before buying

⚠️ Most jobs typically require 12 of this item.
with Metric Threads; Use With Threaded Rocker Arm Studs
Stock
Melling recommends new rocker arm nuts with every engine rebuild. Old nuts are subject to metal failure, worn threads and also tend to be lost during the rebuilding process. Melling rocker arm nuts are manufactured to high quality and material standards. Using new rocker arm nuts assists with proper installation and valve train adjustment.
Brand: Melling
Condition: New
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Specifications & Info


Attribute Value
Grade Type Standard Replacement
Material Carbon Steel
Nut Grade Stock Replacement
Nut Type Open Hex
Thread Diameter 0.325, 8.0
Thread Type Extra Fine
Threads Per Inch 24

Vehicle Fitment Guide

This part fits the following vehicles:

Make Models
Buick Century, Regal, Skylark
Cadillac Cimarron
Chevrolet Astro, Beretta, Blazer, C1500, C2500, Camaro, Caprice, Cavalier, Celebrity, Commercial Chassis, Corsica, Express 1500, Express 2500, G10, G20, G30, K1500, K2500, Lumina, Monte Carlo, P30, S10, S10 Blazer, Silverado 1500
GMC C1500, C2500, G1500, G2500, G3500, Jimmy, K1500, K2500, P3500, Safari, Savana 1500, Savana 2500, Sierra 1500, Sonoma, Typhoon
Isuzu Hombre
Oldsmobile Achieva, Bravada, Cutlass Ciera, Cutlass Cruiser, Cutlass Supreme, Firenza
Pontiac 6000, Grand Am, Grand Prix, Sunbird, Tempest

This is a universal part that fits 1,614 vehicle configurations across 7 makes.

Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies, in plain English.

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Lifetime Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.

Returns (120 Days)

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.
Melling recommends new rocker arm nuts with every engine rebuild. Old nuts are subject to metal failure, worn threads and also tend to be lost during the rebuilding process. Melling rocker arm nuts are manufactured to high quality and material standards. Using new rocker arm nuts assists with proper installation and valve train adjustment.

Interchange Parts

Brand Part Number
Melling MRM-1723
Qualcast 42-1723

Fits Years: 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999

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NEW
Direct-Fit Replacement

Engineered To OEM Specs

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