1. Chevrolet Climate Controls & Control Units To Buy
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  3. STANDARD IGNITION TOST260508002148

STANDARD IGNITION TOST260508002148 Clutch Relay Celebrity A/c 2.5L

fits make: Chevrolet. year: 1986–1987.

Tost260508002148 Standard Ignition 1 A/c Clutch Relay For 1986 1987 Chevrolet Celebrity 2.5l

( Brand: Standard Ignition ), ( Manufacturer Part Number: TOST260508002148 ), ( Part Type: Clutch ), ( Package Included: 1 A/c Clutch Relay ), ( Category: A/c Heater Controls )

Review STANDARD IGNITION A/c Clutch Relay Chevrolet Celebrity 2.5l fits 1986–1987

The **Standard Ignition TOST260508002148 A/C Clutch Relay** is a precision-engineered electrical component designed specifically for the **1986 and 1987 Chevrolet Celebrity** models equipped with the **2.5L inline-four engine**. This relay serves as the critical intermediary between the vehicle s air conditioning system and the electrical power supply, ensuring smooth and reliable activation of the A/C compressor clutch. Crafted from high-quality materials, this relay features a robust **SPDT (Single Pole Double Throw)** switching mechanism, allowing it to seamlessly route power from the vehicle s ignition circuit to the compressor when the A/C is engaged. Its compact yet durable design ensures compatibility with the original wiring harness of the Celebrity, preventing potential electrical interference or short circuits that could arise from inferior or mismatched replacements. The relay incorporates a **normally open (NO) contact configuration**, meaning it remains in an open state until activated by the A/C control module, thus conserving power when the system is off. This design minimizes wear on the compressor and extends the overall lifespan of the A/C system by preventing unnecessary strain. Built to withstand the demanding conditions of automotive electrical systems, including voltage spikes and thermal fluctuations, this relay is fully gasketed and sealed to protect against moisture, dust, and debris common contaminants that can degrade performance in older vehicles. Whether replacing a failed original relay or upgrading an existing system for enhanced reliability, this **TOST260508002148** relay delivers consistent performance, ensuring your Chevrolet Celebrity s air conditioning operates efficiently without the frustration of intermittent failures or complete system shutdowns. Its direct OEM fitment guarantees a seamless integration with the vehicle s wiring diagram, making installation straightforward for both professional technicians and DIY enthusiasts.

### Pros and Cons of Buying a Standard Ignition TOS260508002148 A/C Clutch Relay for a 1986-1987 Chevrolet Celebrity (2.5L)

#### **Pros:**

1. **Compatibility** The relay is specifically designed for the 1986-1987 Chevrolet Celebrity with a 2.5L engine, ensuring a direct fit without modifications.

2. **Reliability** A high-quality relay from a reputable brand (like TOS or similar) is less likely to fail prematurely compared to generic or low-grade alternatives.

3. **Cost-Effective** Replacing a faulty A/C clutch relay is a relatively inexpensive repair compared to other potential A/C system issues (e.g., compressor failure).

4. **Easy Installation** Relays are simple to replace, requiring minimal tools and no wiring adjustments, making it a straightforward DIY fix.

5. **Prevents Further Damage** A failing relay can cause intermittent A/C operation or even damage the compressor if left unaddressed. Replacing it early avoids more costly repairs.

6. **Standard Part Availability** Since it s a common relay, it is widely available from auto parts stores, online retailers, and salvage yards.

#### **Cons:**

1. **Potential Counterfeit or Low-Quality Parts** Some online sellers may offer knockoff or low-quality relays that fail quickly, leading to repeated replacements.

2. **Incorrect Pin Configuration** If the relay is not the exact match (e.g., wrong pinout), it may not function properly, causing electrical issues or no A/C activation.

3. **Underlying System Issues** If the A/C clutch relay is replaced but the problem persists, the issue may lie elsewhere (e.g., faulty compressor clutch, low refrigerant, or electrical shorts).

4. **Limited Lifespan** While relays are durable, they can wear out over time, especially if the vehicle is frequently driven in extreme conditions (e.g., hot climates with heavy A/C use).

5. **Misdiagnosis Risk** If the actual problem is something other than the relay (e.g., a blown fuse, corroded connections, or a failing compressor), replacing just the relay may not resolve the issue.

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### **Conclusion**

Replacing the A/C clutch relay in a 1986-1987 Chevrolet Celebrity (2.5L) is generally a wise and cost-effective solution if the relay is confirmed as the fault. The part is straightforward to source and install, and it can restore proper A/C function without major repairs. However, purchasing from a trusted supplier is crucial to avoid counterfeit or incompatible parts. If the A/C issue persists after relay replacement, further diagnostics (e.g., checking the compressor clutch, refrigerant levels, and wiring) are necessary to identify the root cause.

### **Recommendation**

1. **Verify the Relay is the Issue** Test the relay with a multimeter or swap it with a known-good relay from another system (if possible) to confirm it s faulty.

2. **Buy from a Reputable Source** Purchase the relay from a well-known auto parts retailer (e.g., RockAuto, Amazon with verified sellers, or a local auto parts store) to ensure quality.

3. **Check for Additional Problems** While replacing the relay, inspect the compressor clutch, fuses, and wiring for signs of wear or damage.

4. **Consider a Comprehensive A/C Service** If the A/C still doesn t work after relay replacement, consult a mechanic to diagnose deeper issues like low refrigerant or a failing compressor.

5. **DIY or Professional?** If comfortable with basic electrical work, replace the relay yourself. If unsure, a mechanic can quickly diagnose and fix the issue.

For most cases, this relay is the right part, and replacing it is a smart first step in restoring A/C functionality.

Details:

New List Item. 1 A/C Clutch Relay For 1986 1987 Chevrolet Celebrity 2.5L. All warranty/return items must accompany by a return approval RA note. A 30% re-stock fee applies to any wrongfully ordered rotors or if you decide it is no longer needed.

1987 Oldsmobile Cutlass Cirri.

part #: tost260508002148 price

  • $29.32

specifications chvyacheatercontrols:

  • for makes: Chevrolet
  • for years: 1986-1987
  • brand: Standard Ignition
  • mpn: Tost260508002148
  • part type: Clutch
  • package included: 1 A/c Clutch Relay
  • category: A/c Heater Controls

seller chvyacheatercontrols:

  • city: US
  • # reviews: 98
  • rating: 98.9%

general chvyacheatercontrols:

  • condition: New
  • Car Truck Parts Accessories > Air Conditioning Heating > HVAC Controls Control Units

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  • type: Fixed
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  • policy: Returns Accepted
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offer chvyacheatercontrols:

  • started: May 22, 2026
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  • quantity: 2
  • availability: In Stock
for makes: chevrolet, for years: 1986-1987, part type: clutch, package included: 1 a/c clutch relay, category: a/c heater controls,
category: auto parts > car truck parts accessories > air conditioning heating > hvac controls control units, sku: 11884224183493861,
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