Engines and Components› Camshafts and Valvetrain

Howards Cams

Valve Seals - 11/32 x .500 - PC Type w/o Glue

$7.28

SKU: H01J 93311

In Stock
In Stock
Ships by Oct 7
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Howards Cams 93311 is a set of 16 Ultimate Duty valve stem seals designed for positive stop application. These seals are made from a space-age DuPont fluoroelastomer material that is tolerant to various fuels and temperatures up to 350 degrees Fahrenheit. They are self-lubricating and offer controlled radial tension, lubricating the valve guide while controlling oil.

Machine work is required for installation, specifically machining the top of the valve guide with a special 0.500-inch diameter cutter. The seals accommodate an 11/32-inch valve stem diameter, a 0.500-inch valve guide diameter, and have an outside diameter of 0.630 inches.
Show original supplier description

Part #: 93311

Valve Stem Seal - Positive Stop - 11/32 in Valve Stem - 0.630 in OD - 0.500 in Guide OD - PTFE - Set of 16

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandHowards Cams
Part NumberH01J 93311
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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