Looking for the best Blazer transfer case vacuum switches? Our top-rated switches ensure durability, easy installation, and a perfect fit for your Blazer’s 4WD system.
Choosing the right transfer case vacuum switch for your Blazer can make a big difference. It ensures your 4WD system works smoothly, whether on roads or rough terrain. We’ve gathered the best options to help you decide.
These switches are built to last and fit perfectly. They come with warranties for peace of mind. Installation is quick and easy, saving you time and effort.
Ready to upgrade your Blazer’s performance? Our guide highlights top-rated switches that fit your needs. Find the perfect match and drive with confidence.
List of Top 10 Blazer Transfer Case Vacuum Switches
| Image | Title | Best For | Price |
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TRQ Transfer Case Vacuum Switch Compatible with 1995-2000 Chevrolet Blazer 1983-2000 S10 1983-1994 S10 Blazer 1992-2000 GMC Jimmy 1983-1990 S15 1983-1991 S15 Jimmy 1991-2000 Sonoma Oldsmobile Bravada |
This TRQ Transfer Case Vacuum Switch is perfect for DIY enthusiasts and vehicle owners who want a reliable, easy-to-install replacement part. It’s ideal for those with compatible Chevrolet, GMC, Oldsmobile, or Sonoma models, ensuring a precise fit and hassle-free repairs. |
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Melonpie Transfer Case Vacuum Switch Compatible with Blazer S10 Blazer S15 Jimmy Sonoma Bravada |
This Melonpie Transfer Case Vacuum Switch is perfect for owners of Blazer, S10, Jimmy, Sonoma, or Bravada models from the 1980s to 2000. It’s easy to install and built to last, making it ideal for anyone needing a reliable replacement. |
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Transfer Case Vacuum Switch Compatible with 1995-2000 Chevrolet Blazer 1983-2000 S10 1983-1994 S10 Blazer 1992-2000 GMC Jimmy 1983-1990 S15 1983-1991 S15 Jimmy 1991-2000 Sonoma Oldsmobile Bravada |
This Transfer Case Vacuum Switch is perfect for owners of Chevrolet Blazer, S10, GMC Jimmy, Sonoma, or Oldsmobile Bravada models from 1983 to 2000. It’s ideal for those needing a reliable replacement with a 10-year warranty and compatible reference numbers. |
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Next AutoPart New Transfer Case Vacuum Switch Compatible with Chevy Blazer S10 Pickup Compatible with GMC Jimmy S-15 Pickup Compatible with Oldsmobile Bravada 1991-2000, Replacement for SWA41712 |
This product is perfect for drivers of Chevy Blazer, S10 Pickup, GMC Jimmy, S-15 Pickup, and Oldsmobile Bravada (1991-2000) needing a direct replacement for SWA41712. Check fitment first to ensure it matches your vehicle’s exact specs. |
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Replacement Transfer Case Vacuum Switch for Chevy S10 Blazer GMC Sonoma Oldsmobile Bravada 4WD 4×4 for Chevrolet |
This product is perfect for Chevy S10, Blazer, GMC Sonoma, and Oldsmobile Bravada owners with 4.3L engines needing a direct-fit transfer case vacuum switch. It ensures reliable 4WD performance with durable, OE-standard parts that are road-tested for quality. |
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UnayKolb Transfer Case 4WD Switch Vacuum Actuator For 1995-2005 Chevy Chevrolet Blazer For 1992-2001 GMC Jimmy For 1992-1993 GMC Typhoon |
This UnayKolb Transfer Case 4WD Switch Vacuum Actuator is perfect for Chevy and GMC owners who need a reliable replacement part. It’s easy to install and built to last, making it ideal for keeping your vehicle running smoothly. |
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PartsFlow Transfer Case 4WD Switch Vacuum Actuator for 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 Chevy Chevy Blazer 89059420 |
This product is perfect for Chevy Blazer owners needing a reliable 4WD switch vacuum actuator. It fits 1995–2005 models with part numbers 15664811, 89059420, or 600-500. Built to last, it offers durable performance, easy installation, and a one-year warranty for peace of mind. |
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Dorman 600-504 Transfer Case Switch Compatible with Select Chevrolet/GMC/Isuzu Models |
This transfer case switch is perfect for Chevrolet, GMC, and Isuzu owners whose 4WD system isn’t working right. If your original switch has failed, this is the direct replacement you need to get back on the road with full power. |
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TCSN Transfer Vacuum Switch for Olds,for GMC,for Chevy 4WD 4X4 Assembly Male-Connector Gender 1pc 14463146 600500 HSK0738 |
This TCSN Transfer Vacuum Switch is perfect for owners of older Chevy, GMC, or Olds 4WD vehicles. It’s a reliable replacement part for models like the Blazer, Trailblazer, or K1500 Suburban. |
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Transfer Case Vacuum Switch for Chevy S10 Blazer for GMC Sonoma Olds Bravada 4WD 4×4 |
This Transfer Case Vacuum Switch is perfect for Chevy S10 Blazer, GMC Sonoma, and Olds Bravada 4WD/4×4 owners needing a direct-fit replacement. The TCA2 part ensures easy installation and reliable performance for your vehicle’s 4WD system. |
Detailed Reviews
Finding the best Blazer transfer case vacuum switch can feel overwhelming. This guide simplifies your search, ranking top 10 picks based on expert analysis and real-world performance. From direct-fit replacements to durable builds, each option is vetted for reliable 4WD function. Whether you prioritize easy installation, long-term value, or sturdy materials, we’ve got you covered. Check compatibility fast with tools like Amazon Garage—then pick the perfect match for your ride.
1. TRQ Transfer Case Vacuum Switch Compatible with 1995-2000 Chevrolet Blazer 1983-2000 S10 1983-1994 S10 Blazer 1992-2000 GMC Jimmy 1983-1990 S15 1983-1991 S15 Jimmy 1991-2000 Sonoma Oldsmobile Bravada

The TRQ Transfer Case Vacuum Switch fits many Chevrolet and GMC vehicles from 1983 to 2000. It’s a direct replacement part for easy fixes.
Reference numbers like TCA-2 and 49315 ensure you get the right fit. TRQ offers DIY videos to guide you through installation. Use Amazon Garage to check compatibility fast.
Pre-assembled design saves time and effort. No modifications are needed for installation. Direct-fit quality means it works like the original part.
| Pros | Cons |
|---|---|
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Perfect For:
This TRQ Transfer Case Vacuum Switch is perfect for DIY enthusiasts and vehicle owners who want a reliable, easy-to-install replacement part. It’s ideal for those with compatible Chevrolet, GMC, Oldsmobile, or Sonoma models, ensuring a precise fit and hassle-free repairs.
Ready to Purchase?
2. Melonpie Transfer Case Vacuum Switch Compatible with Blazer S10 Blazer S15 Jimmy Sonoma Bravada

This Melonpie Transfer Case Vacuum Switch fits many older SUVs and trucks. It works with Blazer (1995-2000), S10 (1983-2000), Jimmy (1992-2000), and more.
It matches OE numbers like 14071720 and 1S3164. Just plug in—no cutting or changes needed. Built to handle heat and vibration for years.
Backed by a 1-year warranty. A solid fix for reliable performance.
| Pros | Cons |
|---|---|
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Perfect For:
This Melonpie Transfer Case Vacuum Switch is perfect for owners of Blazer, S10, Jimmy, Sonoma, or Bravada models from the 1980s to 2000. It’s easy to install and built to last, making it ideal for anyone needing a reliable replacement.
Ready to Purchase?
3. Transfer Case Vacuum Switch Compatible with 1995-2000 Chevrolet Blazer 1983-2000 S10 1983-1994 S10 Blazer 1992-2000 GMC Jimmy 1983-1990 S15 1983-1991 S15 Jimmy 1991-2000 Sonoma Oldsmobile Bravada

This Transfer Case Vacuum Switch helps control your vehicle’s 4WD system. It works with 1995-2000 Chevrolet Blazers and many older S10, S15, Jimmy, Sonoma, and Bravada models.
The part comes with a 10-Year Warranty for long-term reliability. It matches reference numbers like 14071720 and SW3467 to ensure a precise fit.
Built to last. Easy to install. Perfect for repairs.
| Pros | Cons |
|---|---|
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Perfect For:
This Transfer Case Vacuum Switch is perfect for owners of Chevrolet Blazer, S10, GMC Jimmy, Sonoma, or Oldsmobile Bravada models from 1983 to 2000. It’s ideal for those needing a reliable replacement with a 10-year warranty and compatible reference numbers.
Ready to Purchase?
4. Next AutoPart New Transfer Case Vacuum Switch Compatible with Chevy Blazer S10 Pickup Compatible with GMC Jimmy S-15 Pickup Compatible with Oldsmobile Bravada 1991-2000, Replacement for SWA41712

The Next AutoPart Transfer Case Vacuum Switch is a direct replacement for your vehicle. It is compatible with specific Chevy, GMC, and Oldsmobile models from 1991 to 2000. Always confirm fitment before buying.
Made from stainless steel, this part is durable and reliable. It replaces the SWA41712 part number and matches OEM references.
This new switch ensures proper function in your vehicle. Check the fitment chart in the description to avoid returns. Get the right part the first time.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for drivers of Chevy Blazer, S10 Pickup, GMC Jimmy, S-15 Pickup, and Oldsmobile Bravada (1991-2000) needing a direct replacement for SWA41712. Check fitment first to ensure it matches your vehicle’s exact specs.
Ready to Purchase?
5. Replacement Transfer Case Vacuum Switch for Chevy S10 Blazer GMC Sonoma Oldsmobile Bravada 4WD 4×4 for Chevrolet

The Replacement Transfer Case Vacuum Switch is perfect for 4WD vehicles. It fits Chevy S10 Blazer, GMC Sonoma, and Oldsmobile Bravada. Works with 6Cyl 4.3L engines from 95-99 and 2005 Blazer.
This switch meets OE standards and uses modern tooling. It’s made with durable materials for long-lasting performance.
Installation is quick and easy. Each unit is road-tested for top reliability. Trust this switch for smooth 4×4 operation.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for Chevy S10, Blazer, GMC Sonoma, and Oldsmobile Bravada owners with 4.3L engines needing a direct-fit transfer case vacuum switch. It ensures reliable 4WD performance with durable, OE-standard parts that are road-tested for quality.
Ready to Purchase?
6. UnayKolb Transfer Case 4WD Switch Vacuum Actuator For 1995-2005 Chevy Chevrolet Blazer For 1992-2001 GMC Jimmy For 1992-1993 GMC Typhoon

The UnayKolb Transfer Case 4WD Switch Vacuum Actuator fits 1995-2005 Chevy Blazer, 1992-2001 GMC Jimmy, and 1992-1993 GMC Typhoon. It replaces part numbers 15664811, 89059420, 600-500, TCA2. Direct fit design ensures easy installation without extra modifications.
Made with high-quality materials, this actuator resists damage and lasts long. It passes strict quality checks for reliable performance.
One-year warranty covers quality issues. Contact customer support for help. Choose this actuator for a durable replacement part.
| Pros | Cons |
|---|---|
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Perfect For:
This UnayKolb Transfer Case 4WD Switch Vacuum Actuator is perfect for Chevy and GMC owners who need a reliable replacement part. It’s easy to install and built to last, making it ideal for keeping your vehicle running smoothly.
Ready to Purchase?
7. PartsFlow Transfer Case 4WD Switch Vacuum Actuator for 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 Chevy Chevy Blazer 89059420

The PartsFlow Transfer Case 4WD Switch Vacuum Actuator fits 1995–2005 Chevy Blazer models. It replaces part numbers 15664811, 89059420, and 600-500. This part ensures reliable 4WD system performance.
Made with high-quality materials, it resists wear and lasts long. A one-year warranty adds peace of mind.
Installation is easy—no extra changes needed. It matches original parts for a perfect fit. Trust this durable upgrade for your vehicle.
| Pros | Cons |
|---|---|
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Perfect For:
This product is perfect for Chevy Blazer owners needing a reliable 4WD switch vacuum actuator. It fits 1995–2005 models with part numbers 15664811, 89059420, or 600-500. Built to last, it offers durable performance, easy installation, and a one-year warranty for peace of mind.
Ready to Purchase?
8. Dorman 600-504 Transfer Case Switch Compatible with Select Chevrolet/GMC/Isuzu Models

The Dorman 600-504 Transfer Case Switch is a direct replacement for your vehicle’s original 4WD switch. It is compatible with select Chevrolet, GMC, and Isuzu models. This switch is designed to restore proper 4WD operation.
Its durable construction ensures reliable longevity, free of defects in materials and craftsmanship. The switch is backed by a team of designers and engineers in the United States, ensuring trustworthy quality.
To ensure a perfect fit, input your vehicle’s make, model, and trim level into the Amazon Garage. This switch is an effective fix for degraded or failed original switches. Get your vehicle’s 4WD system working like new with this high-quality replacement.
| Pros | Cons |
|---|---|
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Perfect For:
This transfer case switch is perfect for Chevrolet, GMC, and Isuzu owners whose 4WD system isn’t working right. If your original switch has failed, this is the direct replacement you need to get back on the road with full power.
Ready to Purchase?
9. TCSN Transfer Vacuum Switch for Olds,for GMC,for Chevy 4WD 4X4 Assembly Male-Connector Gender 1pc 14463146 600500 HSK0738

This TCSN Transfer Vacuum Switch fits older Chevy, GMC, and Olds 4WD vehicles. It replaces part numbers 14463146 and 600500.
The male connector has 3 terminals for easy setup. It works with 1987-2005 Blazers, 2002 Trailblazers, and 1992-1997 Suburbans. Just one piece needed—no extra parts.
This switch ensures reliable 4×4 function. It’s built to last in tough conditions. Check your vehicle fit before buying.
| Pros | Cons |
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Perfect For:
This TCSN Transfer Vacuum Switch is perfect for owners of older Chevy, GMC, or Olds 4WD vehicles. It’s a reliable replacement part for models like the Blazer, Trailblazer, or K1500 Suburban.
Ready to Purchase?
10. Transfer Case Vacuum Switch for Chevy S10 Blazer for GMC Sonoma Olds Bravada 4WD 4×4

The Transfer Case Vacuum Switch helps control the 4WD system in Chevy, GMC, and Olds trucks. It uses vacuum signals to shift between 2WD and 4WD modes. This part ensures smooth driving on roads and rough terrain.
This switch fits models like the Chevy S10 Blazer, GMC Sonoma, and Olds Bravada. It’s built to last, with TCA2 as the interchange part number. A reliable pick for drivers needing sturdy 4WD parts.
Installation is simple—just plug it in and go. It’s a cost-effective fix for faulty vacuum switches.
| Pros | Cons |
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Perfect For:
This Transfer Case Vacuum Switch is perfect for Chevy S10 Blazer, GMC Sonoma, and Olds Bravada 4WD/4×4 owners needing a direct-fit replacement. The TCA2 part ensures easy installation and reliable performance for your vehicle’s 4WD system.
Ready to Purchase?
Buying Guide
The right transfer case vacuum switch keeps your Blazer’s 4WD system running smooth. This guide picks the top switches for easy fixes and long-term use.
- Compatibility: Match your vehicle’s make, model, and year to the product specs. Check OE numbers like TCA-2 or 14071720 to avoid returns.
- Durability: Built to last with stainless steel or heat-resistant materials. Stands up to engine heat and road vibrations.
- Installation: Plug-and-play design means no cutting or welding. Pre-assembled parts fit like the original.
- Warranty: Coverage from 1 to 10 years for peace of mind. Longer warranties often signal higher confidence in quality.
- OE Reference Numbers: Use OEM part numbers (e.g., SW3467 or 89059420) to ensure a perfect match. Saves time and effort.
- Heat and Vibration Resistance: Engineered to handle tough conditions. Reliable performance even in rough terrain.