1AROB00095-Coolant Reservoir Cap Dorman Help 82590
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Replaces

1

1991 GMC V3500 Truck Coolant Reservoir Cap Dorman Help 82590

Radiator Overflow Bottle Cap
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Dorman Help
82590
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Dorman Help
82590
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2.00/ 5.0 1
soft plastic threading could be an issue!!
J
September 19, 2017
cap looks good on the overflow bottle, had a good fit when first installed. However, after engine reached operating temp when you unscrewed cap to check coolant level the underside of cap was turned inward, sort of warped the threading. very hard to screw back on (soft threads) due to engine bay heat? Really shouldn't warp...cheap plastic
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Before proceeding,

select your Vehicle, to verify this Part will fit.

This part will only fit a 1991 GMC V3500 Truck with these options.

Before proceeding,

select your Vehicle, to verify this Part will fit.

This part will only fit a 1991 GMC V3500 Truck with these options.