SKU: 85160505769

850 CFM Ultra Double Pumper Carburetor - 0-76850HB

Sale price$484.18 Regular price$537.98
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Shipping Estimate
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

850 CFM Ultra Double Pumper Carburetor - 0-76850HBOverview: ULTRA light Aluminum construction for 43% weight savings ULTRA stealthy Hard Core Gray anodized finish ULTRA strong Billet metering blocks & base plates ULTRA cool Black anodized billet aluminum metering blocks and base plate ULTRA easy Built in sight window for simple float adjustments ULTRA fast High performance fuel curves The Ultra Double Pumper Carburetors feature all aluminum construction and are equipped with metering blocks and a

Overview:

ULTRA light Aluminum construction for 43% weight savings ULTRA stealthy Hard Core Gray™ anodized finish ULTRA strong Billet metering blocks & base plates ULTRA cool Black anodized billet aluminum metering blocks and base plate ULTRA easy Built in sight window for simple float adjustments ULTRA fast High-performance fuel curves The Ultra Double Pumper™ Carburetors feature all aluminum construction and are equipped with metering blocks and a base plate made from 6061-T6 billet aluminum. They weigh in at approximately 5 lbs. less than a comparable zinc carburetor. The new Ultra Double Pumper Carburetors have an enhanced fuel curve for optimum performance, with many more features such as aluminum construction; anodized billet aluminum metering blocks and base plate; 4 corner idle for precise idle control; mechanical secondaries for great performance; clear fuel level sight plugs for easy, no mess fuel level adjustments; Ford automatic transmission kickdown for use on popular Ford transmissions; four vacuum ports for all necessary vacuum accessories; and for the first time on a Double Pumper, factory pre-set electric choke for easy, fast cold start-ups. The clean, stealthy look coupled with Black metering blocks and throttle body will certainly set your ride apart whether you are at the show or track.

Features:

  • Hard Core Gray™ w/ black anodized billet aluminum metering blocks/base plate. Casting is hard coat anodized for ultimate corrosion resistance
  • Ultra Double Pumpers feature an Optimized street/strip calibration that works out-of-the-box
  • Factory preset electric choke for easy startups
  • Mechanical secondaries for awesome tire turning performance
  • 4 corner idle allows you to precisely control your idle system
  • Built in, clear fuel level sight glass for easy, no mess fuel level adjustments
  • Aluminum construction for a 43% weight savings
  • Compatible with GM, Chrysler, and Ford A/T kickdown linkage. Additional parts may be required.
  • Intended for lightweight vehicles w/ manual trans or automatics with high stall & low gearing
  • 100% wet-flow tested by Holley technicians to assure it arrives ready to run!

Application:

Year Make Model Submodel Engine Size
Universal

Specs:

Barrels 4
Billet Color Black
Booster Down Leg
Brand Holley
Carburetor Use Performance and Race
CFM 850
Choke Electric
Condition New
Emission Code 3
Finish Hard Core Gray
Fuel Gasoline
Fuel Inlet Dual
Marine Use No
Material Aluminum
Model 4150
Primary Main Jet 80
Primary Power Valve 6.5
Primary Pump Nozzle Size 31
Product Type 4150 Model Carburetor
Secondaries Mechanical
Secondary Main Jet 80
Secondary Power Valve 6.5
Secondary Pump Nozzle Size 31
Supercharged Application No
Throttle Bore 1.750 inch
Vacuum Ports 1 timed (spark) port, 2 full, and 1 PCV port
Warning California Proposition 65
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: 85160505769

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4.6 ★★★★★
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Product Reviews
A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 4
Good
Size: 20 Line Spools+4 Caps
Great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
K
Verified Purchase
K. Ranch
Belleville, US
★★★★★ 5
Works like original equipment
Size: 16 Line Spools+4 Caps
Seems to handle the same work load as the manufacturer part. Good quality fit and design. No problems installing the string on the trimmer head. Definitely worth the purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 18, 2025
D
Verified Purchase
Doug
Phoenix, US
★★★★★ 5
Great replacement item.
Size: 16 Line Spools+4 Caps
Fit perfectly but price fluctuates catch them at a low price and order multiples or reload the cassettes with bulk string yourself...easy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
K
Verified Purchase
Kevin Marshall
Lexington, US
★★★★★ 5
It was delivered next day
Size: 8 Line Spools+2 Caps
If it's like the previous line I purchased, it's good. Don't leave it in a hot garage, because the line will sometimes stick together when you get around to using it! NOTE: Again, I received this product YESTERDAY, and Amazon is sending me a survey today!! What AMAZON brain surgeon thinks that this is a good idea????
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
S
Verified Purchase
steve
Houston, US
★★★★★ 5
Worx trimmer string
Size: 16 Line Spools+4 Caps
Perfect fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026

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