Best Air Conditioning Block Fittings in 2026
Daisy
Last Updated: Jul 19, 2026
Daisy
Last Updated: Jul 19, 2026
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Package Dimensions: 10.16 L x 2.032 H x 3.555 W (centimeters)
Package Weight : 0.022 pounds
Automotive Cooling Parts
Country of Origin : China
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Package Dimensions: 3.81 L x 2.032 H x 7.874 W (centimeters)
Package Weight : 0.200 pounds
Automotive Cooling Parts
Country of Origin : China
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
FITMENT:This kit Compatible with 2007-2015 GMC Acadia with the block (peanut style) fittings using sealing washers and dual nuts/bolts as pictured
HIGH QUALITY MATERIALS:Made of high-quality aluminum material, with corrosion resistance and durability. It is not easy to break and has reliable quality. It also makes it unnecessary to bear the expensive cost of replacing the rear air conditioning pipeline or evaporator.
EXCELLENT PERFORMANCE:They allow for front air conditioning operation without the loss of refrigerant from the rear lines or evaporator.
FINE PROCESS:the manufacturing conforms to the standards and specifications, and strictly follows the factory quality control, equipped with o-rings or sealing washers, nuts and bolts
SIMPLE INSTALLATION:The fittings install in the front wheel well areas of the vehicle where the rear lines attach to the front lines.Simple installation without complicated operation.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Codalo-US | 9.83 | ✅ | ✅ | ✅ |
Widely Application: Heater hose fitting is universal suitable for all 1/2-inch NPT pumps or intake manifolds.
Durable: Made of aluminum material, chrome-plated, light weight, anti-oxidation, anti-corrosion, anti-rust on surface, ensuring high durability for long time use.
Comfortable Touch: Triple chrome plating, give your other engine parts a good touch, mirror effect, smooth and durable.
Installation: Easy to install, meets standard specifications, does not require complicated tools, and strictly follows factory quality control.
Quality Guarantee: Warranty and customer service,12 month warranty and reliable customer service. If you have any questions, please email us first and we will be happy to help you until you are 100% satisfied.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Maxon performance parts corp | 9.70 | ✅ | ✅ | ✅ |
☞Compatible with 1996-1999 Chevrolet Tahoe's and Suburbans
☞M27 x 2.0 Thread and Female M16 x 1.5
☞This kit is easy to install by any knowledgeable technician
☞There is not a need for any modification of the front air conditioning lines
☞This allows for front air conditioning operation without the loss of refrigerant from the rear lines or evaporator.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Industrial Equipment Expert | 9.64 | ❌ | ❌ | ❌ |
3 Way Air Hose Coupler Distribution Block Bar Line Splitter Manifold 1/4" NPT
Five- 1/4" Female NPT Ports (End Ports Come with Removable Plugs)
Solid Aluminum Black Finish Use To Run Mulitple Tools / Air Lines Measures: 3-3/4" Long x 3/4" Thick
**1/4" NPT Ports Measure Approx. 1/2" Diameter** Couplers and plugs are NOT included with this purchase.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Product Type: Auto Part
Package Quantity: 1
Package Weight: 0.5 Lb.
Package Dimensions: 17.272Cm (L) X 9.906Cm (W) X 9.144Cm (H)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| JEGS | 9.75 | ❌ | ❌ | ❌ |
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Brand New, OE replacement: UAC branded Oring
Premium ISO/TS 16949 quality; tested to meet or exceed OEM specifications
Maximum cooling efficiency
Product is backed by industry leading warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Industrial Equipment Expert | 9.64 | ❌ | ❌ | ❌ |
2 Way Air Hose Coupler Distribution Block Bar Line Splitter Manifold 1/4" NPT
Five- 1/4" Female NPT Ports (End Ports Come with Removable Plugs)
Solid Aluminum Black Finish Use To Run Mulitple Tools / Air Lines
**1/4" NPT Ports Measure Approx. 1/2" Diameter** Couplers and plugs are NOT included with this purchase.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Dweekiy d1 | 9.67 | ❌ | ❌ | ❌ |
Fit for : A better replacement for Classic, for Hot Rod, and for GM Performance and for Ford vehicles. The bulkheads are suitable for all common OEM and aftermarket air conditioning and heater systems.
Fit for : A better replacement for Classic, for Hot Rod, and for GM Performance and for Ford vehicles. The bulkheads are suitable for all common OEM and aftermarket air conditioning and heater systems.
Outstanding Performance : A/C Bulkhead is exquisite production, with good performance and higher work efficiency, brings you more convenience.
Premium Material : Heater & A/C Bulkheads is manufactured by 6061‑for T6 billet aluminum alloy with high reliability, fine workmanship, wear‑resistance have a longer using time.
Product Detail : The Heater Bulkhead size of superior air conditioning bulkhead is 1 ‑6( 5/8in‑18), heater port is 3 ‑10(7/8in‑14). A/C Bulkhead package included the 1 x A/C Bulkhead.
Purchase Notice : We value the shopping experiences and satisfaction of each customer, so we provide technical support. If the product install or quality have any problem, please contact us in time.We will solve it as soon as possible.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Brand New, OE replacement: UAC branded Oring
Premium ISO/TS 16949 quality; tested to meet or exceed OEM specifications
Maximum cooling efficiency
Product is backed by industry leading warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| JEGS | 9.75 | ❌ | ❌ | ❌ |
(2) Straight Beadlock Fittings
(2) Straight Barbed O-Ring Fittings
(2) 90 Degree Beadlock Fittings
(2) 90 Degree Barbed O-Ring Fittings
(1) O-Ring Kit
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| WLG Electrical | 9.84 | ❌ | ❌ | ❌ |
4 Ways 7 Ports Manifold Block, Threaded Port Dia : 1/4" PT(13mm)
All ports are in the same size, so that you can use it as a 1 in 4 out, 3 in 4 out and so on to meet your own requirement
Overall Size : 125 x 20 x 20mm / 4.9" x 0.7" x 0.7" (L*W*H);Position Quantity : 4
It takes one line of air from a pump, air cylinder, compressor, vacuum engine, or other such system and splits it into many of them.
Weight : 81g;Package : 1 x Manifold Block
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AutoWild | 7.28 | ✅ | ✅ | ✅ |
[Fitment]: The block off kit fit for Ford E Series Vans 1998-2017.(Please review your accessories before ordering to make sure they fit)
[Function]: These fittings will allow you to block off the refrigerant lines to a rear A/C unit and use only a front A/C unit.
[Location]: The connections on the driver's side, in the engine compartment, above the front wheel well, under the brake booster. Some vans will only have accessible fittings under the body.
[High Qulity]: Selection of high quality aluminum CNC processing, smooth surface, seamless molding. We have upgraded to nitrile O-rings, which are more durable and better sealed.
[Customer Service]: We want you to be satisfied with the product, so any quality problem you can get a free return, please contact us promptly for help, we will reply within 12 hours.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
Hose Size: #6; Fitting Size: #6; Thread: 5/8-18UNF
Type: Female, Oring, Beadlock
Angle: Straight, 45 Degree, 90 Degree
Applicated for AI tube, Iron screw, Iron jacket
Material: iron with color zinc-plated finished
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| EST Auto Parts | 5.20 | ✅ | ✅ | ✅ |
Comes with 2 fittings: 5/8" Intake fitting approx 1.8" long including thread. 0.5" thread; 3/4 " Water pump fitting approx. 2.9" long including thread. hose size. thread size 0.5"
Compatibility: all che-vy cars with small block engines: 283 305 307 327 350 383 400
Made of high-quality Iron, which is durable,scratch resistant, corrosion resistant and impact resistance
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Aramox | 2 |
| Dorman | 2 |
| Four Seasons | 2 |
| Uac | 2 |
| Vintage Air | 2 |
| Acdelco | 1 |
| Blackhorse-Racing | 1 |
| Easyberg | 1 |
| Generic | 1 |
| I.e.e | 1 |
We've carried out a comprehensive analysis of 709 reviews on air conditioning block fittings, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select air conditioning block fittings priced around $17.83, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 19 air conditioning block fittings for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .
We are dedicated to assisting our users in finding the right adapters Products based on their needs, saving them considerable time when choosing which air conditioning block fittings to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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