SKU: 53542827558

Holley Cast Aluminum Timing Chain Cover - 21-151

Sale price$107.95 Regular price$119.95
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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5

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Description

Holley Cast Aluminum Timing Chain Cover - 21-151Overview: Holley now offers a solution to the plastic OEM timing chain covers on 1996 up Vortec Small Block Chevy engines. Our cast aluminum timing chain covers are an excellent upgrade from the OEM part, offering the superior durability of an aluminum part with improved functionality. These cast aluminum covers feature timing indicators molded into the body and are available with or without a crank sensor provision to accommodate both carbureted and

Overview:

Holley now offers a solution to the plastic OEM timing chain covers on 1996-up Vortec Small Block Chevy engines. Our cast aluminum timing chain covers are an excellent upgrade from the OEM part, offering the superior durability of an aluminum part with improved functionality. These cast aluminum covers feature timing indicators molded into the body and are available with or without a crank sensor provision to accommodate both carbureted and EFI applications. The covers are available in two finishes; Natural Cast and Satin Black. They are packaged with a high quality gasket and E-coated mounting hardware for added corrosion resistance

Features:

  • Designed as an upgrade from the plastic OEM timing chain covers on 1996-up Vortec Small Block Chevy engines - Replaces GM part numbers 10244600, 12523972, 12523973, 12558343, 12562818, & 93800970
  • Excellent upgrade for Chevrolet Performance crate engines that use the plastic timing chain cover
  • Available for EFI (with crank sensor provisions) and carbureted applications (without crank sensor provision)
  • Includes over-molded FKM oil seal, virtually eliminating concerns of the seal spinning out at high temperatures, which is common with other aluminum timing covers
  • Timing indicator cast into the cover – Intended for use with 8” Vortec balancers and other popular 8” aftermarket balancers
  • Accommodates both stock and aftermarket water pumps
  • Includes high quality gasket, corrosion resistant E-coated hardware, and dowel pins
  • Offered in Natural Cast and Satin Black finishes

Application:

Year Make Model Submodel Engine Size
1985 - 1986 Chevrolet C10 262/4.3L V6
1985 - 1986 Chevrolet C20 262/4.3L V6
1985 - 1986 Chevrolet G10 262/4.3L V6
1985 - 1986 Chevrolet G20 262/4.3L V6
1985 - 1986 Chevrolet G30 262/4.3L V6
1985 - 1986 Chevrolet K10 262/4.3L V6
1985 - 1986 GMC C1500 262/4.3L V6
1985 - 1986 GMC C2500 262/4.3L V6
1985 - 1986 GMC G1500 262/4.3L V6
1985 - 1986 GMC G2500 262/4.3L V6
1985 - 1986 GMC G3500 262/4.3L V6
1985 - 1986 GMC K1500 262/4.3L V6
1985 Chevrolet Astro 262/4.3L V6
1985 Chevrolet K20 262/4.3L V6
1985 GMC K2500 262/4.3L V6
1985 GMC Safari 262/4.3L V6

Specs:

Application Small Block Chevy
Brand Holley
Crank Sensor Provision No
Emission Code 5
Engine Chevrolet VORTEC V8
Finish Black
Gaskets Included Yes
Material Aluminum
Mounting Hardware Included Yes
Product Type Timing Chain Cover
Thickness Standard OEM
Warranty Limited 90 Day
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 53542827558

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Rob Rosensteel
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★★★★★ 5
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Size: 16-21 Civic, 17-22 CR-V
product was a good priced. Fit as it should. will buy again when needed.
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Reviewed in the United States on May 28, 2026
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★★★★★ 5
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I received when promised and it fit my automobile correctly, I get good gas mileage already so we will see if the gas mileage comes up. The quality was great always looking for high quality when changing the air filters and this item met that standard. Go ahead and buy it will meet you demands.
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Reviewed in the United States on May 24, 2026
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Kristina
Grantham, US
★★★★★ 4
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Size: 18-26 Expedition, 15-26 F-150, 18-26 Navigator
The engine air filter fit perfect. The cabin air filter was a bit of a challenge fitting. seemed to be a bit larger but it went in and got the cap back on the box. For the price you cant beat it. Would buy again!
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Reviewed in the United States on May 15, 2026
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Storyteller
Natrona Heights, US
★★★★★ 5
Great Filter Set for Allergy‑Sensitive Families and MPG‑Minded Drivers
Size: 21-25 TLX, 18-25 Odyssey
I bought this set because I prefer handling routine maintenance myself, especially cabin and engine air filters, rather than paying dealership prices for simple jobs. The package included one cabin air filter and one engine air filter, plus a full backup set for the next service interval. Both filters installed easily and fit the 2018 Honda Odyssey exactly as expected. No trimming, no forcing, and no alignment issues. The cabin filter seated cleanly in the glove‑box housing, and the engine filter dropped into the airbox without any airflow restriction or sealing gaps. This setup is ideal for Odyssey owners who want to maintain optimal cabin air quality—especially helpful for families with allergies—and for drivers looking to keep engine airflow unrestricted for the best possible MPG and throttle response. It may not be necessary for anyone who relies exclusively on dealership service or doesn’t perform their own maintenance. Overall, this is a straightforward, high‑value filter set that installs cleanly and supports both air quality and engine efficiency for DIY‑minded Odyssey owners.
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Reviewed in the United States on May 26, 2026
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Tom Crum
Waukegan, US
★★★★★ 5
Auto air filters
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Perfect - product great - installation easy and much cheaper than having dealer or auto shop do it ——
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