Tectonic
Contact us at 1-866-461-2787 for pricing
Contact us at 1-866-461-2787 for pricing
Call for PriceSelect your vehicle to check fitment.
Tectonic ACSP76503 Vehicle Fitment
Fits 0 vehiclesThis Tectonic fits vehicles.
Tectonic ACSP76503 Specifications
- Refrigerant Type
- R12
- Refrigerant Type
- R134A
- Refrigerant Type
- R1234yf
- Quick Connect System
- No
- Fitting Size End 1 (in)
- 0.313 in
- Package Contents
- 1 Aluminum Line Block Off
Tectonic ACSP76503 Interchange Numbers
This part replaces and is compatible with the following part numbers
Interchange Numbers
Tectonic ACSP76503 Product Description
Tectonic A/C Repair Fittings - Standard Multi Size A/C Repair Block Off Caps 5/16" - Replacement for ACDelco 15-34525, FMSI 76503, Dorman - OE Solutions 800-994, General Motors 88878223
Introducing Tectonic A/C Repair Fittings - Standard Multi Size A/C Repair Block Off Caps (Line Terminators), the ultimate solution for sealing off A/C lines in automotive systems. Designed to work on both metal and aluminum lines, our block off caps provide a secure, efficient, and reliable way to terminate unused or damaged A/C lines. Perfect for air conditioning, transmission, power steering, or heater line repairs, these block off caps are engineered for durability and ease of use, ensuring long-lasting performance and a quick installation process.
Cross Reference & Interchange
ACDelco 15-34525, FMSI Universal 76503, Dorman - OE Solutions 800-994, General Motors 88878223
About Tectonic
Shop Tectonic A/C Line Connector at Autrex with vehicle fitment details, current pricing, and checkout options for the Tectonic ACSP76503. Eligible orders over $99 may qualify for free shipping, with some exceptions. Tectonic is an engineered chassis and suspension brand built for Canadian road conditions, delivering reliable performance at exceptional value.
Ratings & Reviews
Based on 47 reviews
- 538
- 46
- 31
- 21
- 11
- Direct fit, no surprisesMarc D.Verified BuyerMay 28, 2026
Lined up perfectly with the original. Install took about an hour with the right press. Solid feel back in the steering, no more clunk over bumps.
Installed on 2016 Ram 1500
- Shipped fast across CanadaJen P.Verified BuyerMay 14, 2026
Ordered on a Monday, had it by Wednesday in Calgary. Greasable fitting is a nice touch. Quality looks on par with OEM.
Installed on 2014 Chevrolet Silverado 1500
- Good part, double-check your sideSteve R.Verified BuyerApr 30, 2026
Works great so far. Just confirm fitment for your exact trim before ordering — the fitment list on the page was accurate for mine.
Installed on 2017 Ford F-150
- Quiet againAmrit S.Verified BuyerApr 19, 2026
Replaced both sides at the same time. The knocking noise is completely gone. Boot quality feels durable.
Installed on 2015 GMC Sierra 1500
- Would buy againDaniel L.Mar 22, 2026
Second one I've bought from Autrex. Packaging was secure and the part matched the photos exactly.
Installed on 2013 Dodge Durango
Frequently Asked Questions — Tectonic ACSP76503
What parts does the Tectonic ACSP76503 replace?
The Tectonic ACSP76503 is a direct replacement for ACDelco 15-34525, Dorman - OE Solutions 800-994, FMSI Universal 76503, General Motors 88878223. See the full interchange list for all compatible replacements.
What are the shipping options for the Tectonic ACSP76503?
Shipping options for the Tectonic ACSP76503 are shown during checkout and may vary by item, address, and availability. Eligible orders over $99 may qualify for free shipping, with some exceptions. Call 1-866-461-2787 if you need help confirming shipping or pickup before ordering.
What is the price of the Tectonic ACSP76503?
For current pricing on the Tectonic ACSP76503, please call us at 1-866-461-2787. Availability and final order details are confirmed before checkout is completed.
Is the Tectonic a direct fit replacement?
Yes, the Tectonic by Tectonic is designed as a direct fit replacement. Use our vehicle selector to confirm compatibility with your specific vehicle.
What warranty does the Tectonic come with?
The Tectonic comes with the standard Tectonic manufacturer warranty. Please check the product specifications for exact warranty terms.