RC81 15 PSI Radiator Cap for GM Vehicles

Vehicle Info Needed

ACDELCOPART NUMBER: 065-RC81

RC81 15 PSI Radiator Cap for GM Vehicles

Name: RC81 15 PSI Radiator Cap for GM Vehicles
Brand: ACDELCO
SKU: 065-RC81
Price: 10.99 USD
Availability: InStock

Color:

^$10⁹⁹

Ships on 09/17/2026

Lowest Price Guarantee

Radiator Cap

For GM Vehicles

15 PSI Pressure Rating

Stainless Steel

Non-Lever Type

Direct Replacement

See Fitment Tab for All Applications

The RC81 15 PSI Radiator Cap is designed to seal and maintain proper pressure in the cooling system, supporting safe and efficient engine operation in GM vehicles. Manufactured to OE specifications, it provides reliable fit, durability, and performance. ACDelco GM Original Equipment radiator caps are engineered to deliver the same service life and functionality as factory-installed components.

RC81 15 PSI Radiator Cap for GM Vehicles Features:

Maintains proper cooling system pressure
15 PSI pressure rating
Constructed from stainless steel
Round cap design
Non-lever type construction
Designed to meet OE specifications for fit and function

High Quality OEM Style ACDelco Radiator Caps

Part TypeRadiator Cap

Product LineACDelco Radiator Caps

BrandACDELCO

Package Height1.3

Package Width2.9

Package Length3.1

Weight0.05 PG

Part CategoryReplacement Parts

Cap FinishStainless Steel

Filler Neck Height (Mm)19.5

Programming RequiredNo

ShapeRound

Cap Depth0.96

Filler Neck Inside Diameter1.24

Body TypeVarious - Application Specific

Coolant Recovery SystemYes

Filler Neck Inside Diameter (Mm)31.41

Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 1Coolant leaks

Signs Of Wear &#38; Troubleshooting - Section 1 - HeaderSigns of wear for radiator caps include but are not limited to:

Good Maintenance Practices - Section 1 - Bullet 1Ensure cap seal are not worn or broken

Good Maintenance Practices - Section 1 - Bullet 2Lock cap into correct position to help prevent leakage and provide proper ventilation

Features &#38; Benefits - Bullet 2GM-recommended replacement part for your GM vehicle's original factory component

Meets Or Exceeds Original Equipment Manufacture SpecificationsYes

Cap Depth (Mm)24.3

Features &#38; Benefits - Bullet 3Offering the quality, reliability, and durability of GM OE

Pressure15 PSI

Features &#38; Benefits - Bullet 4Manufactured to GM OE specification for fit, form, and function

Filler Neck Outside Diameter (Mm)56.76

Number Of DoorsVarious Application Specific

Product DescriptionACDelco GM Original Equipment Radiator Caps help seal and maintain pressure in your vehicle's radiator, and are GM-recommended replacements for your vehicle's original components. These radiator caps have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Filler Neck Outside Diameter56.76

Features &#38; Benefits - Bullet 1Helps seal and maintain pressure in your vehicle's cooling system for vehicle safety

Quick Pressure ReleaseNo

Filler Neck Height0.77

Meets Or Exceeds Original Equipment ManuYes

ColorSilver

MaterialStainless Steel

Lever TypeNo

Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 2Steam venting from radiator or surge tank cap

Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 3Engine overheating

Length (In)2.9

Part FitmentSemi Universal