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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
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Description
MT3903 RAPID SEAL KIT INTERNATIONAL APPLICATIONCross References Brand Manufacturer Part Number AP Air Inc. 44 300 Autokool MT3903 FleetPride OTR503903, OTRRS1003 Global Parts Distributors LLC (GPD) 1321372 Ideal Air 7901069 MEI Air Source 0169, 0179 Murray Climate Control 26975 Navistar International (OEM) 2614861C91, 2614861 C91, 2614861C92 Omega Environmental Technologies (Main Product) MT3903 Red Dot 70R5506, RD 5 15358 0P Santech MT3903 Sunair Products KT NAV3 UAC RS 3903, RS3903 Technical
Cross References
| Brand / Manufacturer | Part Number |
|---|---|
| AP Air Inc. | 44-300 |
| Autokool | MT3903 |
| FleetPride | OTR503903, OTRRS1003 |
| Global Parts Distributors LLC (GPD) | 1321372 |
| Ideal Air | 7901069 |
| MEI / Air Source | 0169, 0179 |
| Murray Climate Control | 26975 |
| Navistar / International (OEM) | 2614861C91, 2614861-C91, 2614861C92 |
| Omega Environmental Technologies (Main Product) | MT3903 |
| Red Dot | 70R5506, RD-5-15358-0P |
| Santech | MT3903 |
| Sunair Products | KT-NAV3 |
| UAC | RS 3903, RS3903 |
Technical Specifications
| Feature | Details / Value |
|---|---|
| Product Type | A/C System O-Ring and Gasket Kit |
| Kit Designation | Rapid Seal Kit / Navistar Slim Line Washer Kit |
| Material Composition | Premium Hydrogenated Nitrile Rubber (HNBR) O-Rings & Heavy-Duty Steel Washers |
| Total Piece Count | 15-Piece Assortment Kit |
| Kit Contents | • 3 x #6 Navistar Slim-Line Sealing Washers & HNBR O-Rings • 6 x #8 Navistar Slim-Line Sealing Washers & HNBR O-Rings • 6 x #10 Navistar Slim-Line Sealing Washers & HNBR O-Rings |
| Refrigerant Compatibility | Flawlessly compatible with R12, R134a, and R1234yf system fluid parameters |
| Physical Properties | Excellent elastomer compression, high chemical degradation resilience, extreme temperature thresholds, and complete sealing force retention |
| Country of Origin | China (CN) |
| UPC Code | 00780250942939 |
| Product Department | HVAC Systems / Mobile Climate Control Sealing Components |
Applications & Compatibility Guide
| Category | Usage & Compatible Truck Models |
|---|---|
| Recommended Use | • Designed as a complete vehicle-specific rapid refresh overhaul bundle containing exact-fit replacement seals required for servicing the compressor, accumulator, expansion valve, and condenser plumbing junctions in a single repair job. |
| Truck & Engine Models | • International / Navistar Commercial Fleet Platforms: - International ProStar , Navistar , LT , Models |
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 18 reviews
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Product Reviews
★★★★★ 5
Calm and Happy
Color: White
My new puppy lives her emotional support toy. After the first 2 nights, she was yelling this toy showed up and immediately calmed our nights. Now she attacks it as if she's still with her siblings.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2025
★★★★★ 5
Perfect for new puppy
Color: White
Got it for my new puppy, he loved it until he destroyed it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
★★★★★ 5
So cute and it works!
Color: White
My mini goldendoodle loves this puppy, definitely help him sleep at night as he hold on to it every time he sleeps in the crate.
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Reviewed in the United States on December 28, 2025
★★★★★ 5
Works well. Cuddly.
Color: Black
Worked well for my Puppy. Ended up taking out the heart beat and she was fine. She still cuddles with it in her crate at night. Holds up well to puppy teeth.
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Reviewed in the United States on October 23, 2025
★★★★★ 5
Great BUY!
Color: Yelow, Color: Yelow
Great product! I bought this for our puppy we were getting since she was going to now be away from momma. As soon as I turned the heartbeat function on she started to lick the toy and laid her head on it. Needless to say that we slept throughout the night because of this toy. She loves it! The heartbeat function is pretty noticeable too!
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Reviewed in the United States on June 1, 2025