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  3. 51PXJMP91

51PXJMP91 Ap Speedometer Transmitter Navajo

fits model: B2300, B3000, B4000. year: 1992–1994.

51pxjmp91 Replacement Ap Speedometer Transmitter For B2300 B3000 B4000 Navajo 1992 1993 1994

( Manufacturer Part Number: 51PXJMP91 ), ( Type: Speedometer Transmitter ), ( Fits 1: 1994-1997 Mazda B2300 ), ( Fits 2: 1994-1997 Mazda B3000 ), ( Fits 3: 1994-1997 Mazda B4000 ), ( Fit Note: Vehicle Speed Sensor Rear Wheel Drive ), ( Attention: Please Read All Notes To Confirm Fitment )

Review Replacement Ap Speedometer Transmitter Navajo fits B2300 B3000 B4000 1992–1994

The **AP 51PXJMP91 Speedometer Transmitter** is a high-performance, direct-fit replacement designed specifically for the **1992 1994 Ford B-Series (B2300, B3000, B4000) Navajo models**, ensuring accurate speed readings and seamless integration with your vehicle s existing electrical system. Engineered to meet or exceed OEM standards, this transmitter features a durable **aluminum housing** and precision-machined internal components, providing long-lasting reliability even under demanding conditions. The unit incorporates a **hall-effect sensor**, delivering precise and consistent speed data to your dashboard gauge, eliminating common issues like erratic readings or premature failure. Compatible with both **mechanical and electronic speedometer setups**, this transmitter is ideal for restorers, customizers, or owners looking to replace a faulty or worn-out original unit without sacrificing performance. Its compact yet robust design ensures a snug fit on the **transfer case output shaft**, where it interfaces directly with the driveshaft, allowing for accurate speed calculations regardless of transmission type. Whether you re maintaining a classic Navajo for daily driving or restoring one to its original glory, this AP speedometer transmitter offers a dependable solution that restores confidence in your vehicle s instrumentation. Backed by Ford s legacy of engineering excellence and built to withstand the rigors of off-road and highway use, this part is a straightforward upgrade that enhances both functionality and resale value.

### **Pros and Cons of buying a AP 51PXJMP91 Speedometer Transmitter for 1992-1994 Ford B-Series (B2300, B3000, B4000) Navajo**

#### **Pros:**

1. **Compatibility** The AP 51PXJMP91 is specifically designed for the 1992-1994 Ford B-series trucks and Navajo models, ensuring a direct fit without major modifications.

2. **Accurate Speedometer Functionality** Replaces a faulty or worn-out speedometer sender, restoring proper speed readings to the dashboard. This is critical for safe driving and avoiding speeding tickets.

3. **Durability** AP (Automotive Products) is a reputable brand known for producing high-quality aftermarket parts, often built to last longer than OEM components.

4. **Easy Installation** Designed for straightforward replacement, typically requiring only basic tools. Many users report completing the job in under an hour without special skills.

5. **Cost-Effective Fix** Replacing a faulty speedometer sender is far cheaper than overhauling the entire instrument cluster or dashboard. It avoids the need for costly diagnostic work if the issue stems from a bad sender.

6. **Prevents Further Damage** A failing speedometer sender can sometimes cause erratic behavior in other vehicle systems (e.g., odometer or fuel efficiency tracking), so replacing it early prevents secondary issues.

7. **Widely Available** Since it s a common part for these Ford models, it can be easily sourced from auto parts stores, online retailers (Amazon, RockAuto, eBay), or directly from AP distributors.

8. **No Calibration Needed** Unlike some modern sensors, this analog speedometer transmitter does not require programming or calibration after installation.

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#### **Cons:**

1. **Potential for Counterfeit Parts** Since this is an older model part, there is a risk of purchasing a knockoff from untrusted sellers. Always buy from verified suppliers (e.g., RockAuto, local auto parts stores, or AP-approved dealers) to avoid poor-quality fakes.

2. **Wiring Concerns** If the wiring harness or connectors are damaged, the installation may require additional repairs. Older vehicles often have brittle wiring that can break during removal or installation.

3. **Mismatched Odometer Functionality** While the speedometer will work, some users report that the odometer may not reset correctly or may run at an incorrect rate if the sender was not the original part. This is rare but possible if the sender s resistance values differ slightly.

4. **Limited Longevity Compared to OEM** While AP parts are durable, they may not last as long as the original Ford sender, especially if the vehicle sees heavy use (e.g., towing, off-roading).

5. **No Warranty on Some Retailers** Some online marketplaces (e.g., eBay) may not offer returns or warranties, so purchasing from a store with a return policy is advisable.

6. **May Not Fix Other Dashboard Issues** If the speedometer cluster itself is faulty (e.g., burned-out gauges, wiring issues), replacing the sender will not resolve those problems.

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### **Conclusion:**

The **AP 51PXJMP91 speedometer transmitter** is a **reliable and cost-effective solution** for restoring accurate speedometer readings in 1992-1994 Ford B-series trucks and Navajos. Its **direct compatibility, ease of installation, and durability** make it a strong choice for DIYers and mechanics alike. However, **buyers must ensure they purchase an authentic part** from a trusted source to avoid counterfeit issues. If the vehicle s dashboard has other problems (e.g., flickering gauges, dead odometer), addressing those separately will be necessary.

For most users, the **pros outweigh the cons**, making this a **highly recommended fix** for a malfunctioning speedometer sender. If budget is a concern, comparing prices across retailers (e.g., RockAuto, AutoZone, local shops) can help secure the best deal.

**Final Recommendation:**

- **Buy from a reputable supplier** (e.g., RockAuto, AP-approved dealers, or well-reviewed online stores).

- **Inspect wiring and connectors** during installation to avoid future issues.

- **Test the speedometer** after installation to ensure accuracy.

- **Consider replacing related components** (e.g., fuse, wiring) if they appear worn.

This part is a **simple, effective fix** for a common issue in these Ford models and is well worth the investment for safety and functionality.

Details:

Detailed Applications Vehicle Sub model, 1994 - 1997 Mazda B2300SE RWD, B2300Base 1994 1996 B3000SE 1994, 1997 B3000Base B4000LE B4000SE 1992 - 1994 Navajo LX Navajo DX RWD.

part #: 51pxjmp91 price

  • $37.08

specifications boosttempgauges:

  • for models: B2300, B3000, B4000
  • for years: 1992-1994
  • mpn: 51pxjmp91
  • type: Speedometer Transmitter
  • fits 1: 1994-1997 Mazda B2300
  • fits 2: 1994-1997 Mazda B3000
  • fits 3: 1994-1997 Mazda B4000
  • fit note: Vehicle Speed Sensor Rear Wheel Drive
  • attention: Please Read All Notes To Confirm Fitment

returns boosttempgauges:

  • time: 30 Days
  • paid by: Seller
  • policy: Returns Accepted

shipping boosttempgauges:

  • type: Fixed
  • service: Standard
  • cost: $0.00
  • transit: 3-7 Days
  • class: Standard

seller boosttempgauges:

  • rating: 97.3%
  • city: Reading, Pennsylvania
  • # reviews: 57959

general boosttempgauges:

  • Interior Parts Accessories > Gauges > Individual Gauges
  • condition: New

offer boosttempgauges:

  • options: Ship-to-home
  • sold: 0
  • availability: In Stock
  • quantity: 1
  • started: May 12, 2026

payments boosttempgauges:

  • other
  • credit card: Diners-club
  • wallet: Apple-pay
for models: b2300, b3000, b4000, for years: 1992-1994, type: speedometer transmitter, fits 1: 1994-1997 mazda b2300, fits 2: 1994-1997 mazda b3000, fits 3: 1994-1997 mazda b4000, fit note: vehicle speed sensor rear wheel drive, attention: please read all notes to confirm fitment, category: auto parts > interior parts accessories > gauges > individual gauges, sku: 20649253838473881,
51PXJMP91 Is Similar To:
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1 offer $37.08 USD
  • New. Offer #1 priced at $37.08 + $0.00 shipping estimate = $37.08* total. 1992-1994 Mazda Navajo LX RWD. 1994-1997 Mazda B2300 SE RWD.FREE SHIPPING

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