Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Phenolic Carb Spacer 1/2 4 Hole 300-4004 - 300-4004QFTOverview: Designed for drag race applications only. Features include 1 2" 4 hole phenolic spacer with 1 11 16" throttle bore size. Features: Application: Year Make Model Submodel Engine Size Universal Specs: Brand Quick Fuel Emission Code 5 Flange Style 4150 Material Phenolic Product Type Carburetor Spacer Thickness 1 2" Warranty Limited 90 Day
Overview:
Designed for drag race applications only.
Features include 1/2" 4-hole phenolic spacer with 1-11/16" throttle bore size.
Features:
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Brand | Quick Fuel |
|---|---|
| Emission Code | 5 |
| Flange Style | 4150 |
| Material | Phenolic |
| Product Type | Carburetor Spacer |
| Thickness | 1/2" |
| 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:
- 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
4.6 ★★★★★
Based on 812 reviews
Sort
Product Reviews
★★★★★ 5
Fit 2024 F250 Platinum
Size: 1.9" x 9.9" x 11.4"
Good quality, perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
★★★★★ 5
Great
Size: 1.9" x 9.9" x 11.4"
Great value for the money and easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 5
nice quality
Size: 1.9" x 9.9" x 11.4"
I happen to be a fan of K&N air filters. Fit perfect in my vehicle. Seems like a much nicer quality filter than the cheapo filters from the parts store.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 7, 2026
★★★★★ 5
excellent product
Size: 1.9" x 9.9" x 11.4"
easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
★★★★★ 5
Great purchase!
Size: 1.9" x 9.9" x 11.4"
This has worked out quite well. I have had it since 2023 and have been cleaned thru about 6 maintenance schedules. It's been 2 yrs and it's in great shape. Worth every penny.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 21, 2025