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PML Automotive Accessories

PML offers accessories for Hummer H1 and for our differential covers, transmission pans and valve covers.

H1 Hummer Window Switch Covers

Hummer Switch Covers (or bezels), in black powder coated or tumbled aluminum, replace the plastic window control button covers in the H1. PML designed and manufactures these in response to customers who have had the plastic covers break. They are strong cast-aluminum and made in the US. They can be purchased individually or as a set (see pictures and pricing by following these links):


PML sells rubber grommets that can be used with our valve covers. Please call for ordering and pricing.

  • 1.25" Grommet, accommodates Breather
  • 1.25" Grommet, accommodates PCV


PML sells breathers that are compatible with our valve covers. The push-in breather can be used with our small block valve covers or with our Cadillac valve covers. Please call for ordering and pricing.

Cable Extensions

PML custom makes and sells cable wiring extensions for GM Gen3 LS1/LS6 engines.

Oil Caps

Oil Caps are not yet available for on-line purchase. They are for use with our Cadillac and Jeep valve covers. Please call for ordering and pricing.

  • Oil caps - billet with O-ring

Drain Plugs

PML sells extra or replacement magnetic drain plugs for our differential covers and transmission pans:


Extra or replacement bolts for PML differential covers, transmission pans, and valve covers are available. Please call to order.