SKU: 55906590463

Optispark Distributor Vacuum Harness – LT1/LT4 (1993–1997 B/D/F-Body)

Sale price$80.95 Regular price$89.95
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  • USA
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

Optispark Distributor Vacuum Harness – LT1/LT4 (1993–1997 B/D/F-Body)Vacuum harness for LT1 and LT4 engines equipped with a ventilated Optispark distributor, found in B , D , and F body vehicles including the Camaro, Firebird, Impala SS, Fleetwood, Caprice, and Roadmaster. Replaces discontinued GM part number 12555323. Important: This harness is not compatible with Corvettes. Click here for the Corvette specific harness. Upgrade your worn or heat damaged vacuum harness assembly with our high quality replacement. Our

Vacuum harness for LT1 and LT4 engines equipped with a ventilated Optispark distributor, found in B-, D-, and F-body vehicles including the Camaro, Firebird, Impala SS, Fleetwood, Caprice, and Roadmaster. Replaces discontinued GM part number 12555323.

⚠️ Important: This harness is not compatible with Corvettes.
Click here for the Corvette-specific harness.

Upgrade your worn or heat-damaged vacuum harness assembly with our high-quality replacement. Our assembly includes the correct micron filter, check valve, fitting, and hose to suit GM ventilated Optispark distributors.  The check valve and filter match the original micron rating and are constructed from Viton material for enhanced durability. Additionally, the check valve features an integral orifice to help prevent cap implosion.

Key Features:

  • Optimized Vacuum Flow: Our harness assembly is designed with the correct vacuum orifice, ensuring optimal vacuum flow without risking distributor damage.
  • High-Quality Construction: While not original equipment from the manufacturer, our harness is crafted to closely match original specifications and appearance. We use high-quality vacuum hoses and fittings for durability and reliable performance.

Please note: Minor variations may occur due to component availability.

Installation Tips:

Attaching the vacuum hose to the distributor cap can be challenging when the ambient temperature is below 85°F. To ease installation, we recommend using a non-silicone-based lubricant, such as WD-40 or CRC.

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: 55906590463

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4.3 ★★★★★
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Verified Purchase
Jose Javier Garcia Fernandez
Fort Morgan, US
★★★★★ 3
Med Quality prod
Size: Full, Color: Light Grey
A little wrinkle
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
A
Verified Purchase
Armie Sheffield
Louisville, US
★★★★★ 5
Awesome product
Size: King, Color: Navy Blue
From this point forward, this is the only company that I would use. All is one color, and not having the white fabric in the middle is a bonus!
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Reviewed in the United States on May 14, 2026
C
Verified Purchase
Cat
Port Orchard, US
★★★★★ 5
Bed pleated duster
Size: Full, Color: Beige
Lightweight great price easy to fit the bed
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Reviewed in the United States on April 16, 2026
D
Verified Purchase
DMB
Omaha, US
★★★★★ 5
Nice dark blue color
Size: Twin, Color: Navy Blue
Bought 2 dark blue for twin beds and they look good with my blue and white quilts covering the beds. There are some wrinkles in the cloth due to packaging which may relax with time. but don't show much due to the dark color. I did find any defects in the stitching or fabric on the items I purchased. A note for prospective buyers is that the dust ruffle covers the entire bed foundation, so get help to put on under a heavy mattress.
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Reviewed in the United States on April 18, 2026
F
Verified Purchase
Francisco Sanchez
Bozeman, US
★★★★★ 5
Good product
Size: Queen, Color: Light Grey
Just perfect, fit exactly as intended
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Reviewed in the United States on June 6, 2026

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