AC DELCO 56448HPKM Citation Control Relay A/c

( Brand: Ac Delco ), ( Manufacturer Part Number: 56448HPKM ), ( Part Type: Control ), ( Manufacturer Warranty: 12 Month Warranty ), ( Notes: Gold New ), ( Years: 1984 1985 ), ( Application: Chevrolet Citation Ii A/c Control Relay ), ( Product Name 2: A/c Compressor Control Relay ), ( Cs-sku: 400 )

Review AC DELCO Chevrolet Citation A/c Control Relay fits 1984–1985

The **AC Delco 56448HPKM** is a high-performance, direct-replacement air conditioning control relay specifically engineered for the **1984 1985 Chevrolet Citation** models, ensuring seamless integration with the vehicle s climate control system. This relay serves as the critical electrical interface between the driver s climate controls and the A/C compressor clutch, regulating power flow to activate or deactivate the compressor based on driver input. Crafted from durable, high-quality materials, the relay is designed to withstand the rigors of daily driving, including exposure to temperature fluctuations, vibration, and electrical surges, which are common in automotive environments. Its compact yet robust construction features precision-molded contacts and a reinforced housing, minimizing wear and preventing premature failure even under demanding conditions. The **56448HPKM** is fully compatible with the Citation s factory wiring harness, eliminating the need for modifications or additional adapters, and it adheres to strict OEM specifications to guarantee reliable performance. Whether replacing a faulty original relay or upgrading an existing system, this component ensures smooth operation of the air conditioning, reducing compressor cycling, preventing electrical shorts, and maintaining optimal cooling efficiency. Ideal for both professional mechanics and DIY enthusiasts, the AC Delco 56448HPKM is a dependable, long-lasting solution that upholds the integrity of the Citation s climate control system while delivering consistent, hassle-free functionality.

### **Pros and Cons of buying a AC Delco 56448HPKM A/C Control Relay for a 1984-1985 Chevrolet Citation**

1. **Direct Fitment** This relay is specifically designed for the 1984-1985 Chevrolet Citation, ensuring compatibility without modification.

2. **Reliability** AC Delco is a trusted brand known for producing high-quality automotive electrical components, reducing the risk of premature failure.

3. **Prevents Common Issues** A faulty A/C control relay can cause intermittent or complete loss of air conditioning function. Replacing it with a known-good unit can restore proper operation.

4. **Easy Installation** Relays are simple to replace, typically requiring only basic tools and a few minutes of work.

5. **Cost-Effective Fix** Replacing a relay is far cheaper than troubleshooting or replacing other components (such as the A/C compressor clutch or control module) that may fail due to a bad relay.

6. **Warranty Coverage** Many aftermarket relays, including AC Delco, come with a warranty, providing peace of mind against defects.

1. **Potential Counterfeit Risk** Some online sellers may offer fake or low-quality replicas, which could fail prematurely or cause electrical issues.

2. **Age of the Vehicle** The 1984-1985 Citation is over 30 years old, meaning wiring or other components may be degraded, potentially leading to secondary failures if the relay is the only issue.

3. **Diagnostic Uncertainty** If the A/C system has multiple faults (e.g., low refrigerant, faulty compressor clutch, or wiring issues), replacing just the relay may not fully resolve the problem.

4. **Limited Availability** While AC Delco parts are widely available, finding an exact match in local stores may require online ordering, which could delay repairs.

5. **Testing Required** Even a new relay may need verification (e.g., checking for proper engagement of the A/C clutch) to confirm it s functioning correctly.

---

### **Conclusion**

The **AC Delco 56448HPKM A/C control relay** is a **reliable and cost-effective solution** for restoring proper air conditioning function in a 1984-1985 Chevrolet Citation, provided the issue is isolated to the relay. Its direct fitment and brand reputation make it a strong choice, but buyers should ensure they purchase from a trusted source to avoid counterfeit parts. However, if the A/C system exhibits other symptoms (e.g., weak airflow, unusual noises, or no response at all), further diagnostics may be necessary to rule out additional failures.

---

### **Recommendation**

- **If the A/C system fails to engage or cycles intermittently**, replacing the relay with the **AC Delco 56448HPKM** is a **practical first step** and a reasonable investment.

- **Purchase from a reputable seller** (e.g., RockAuto, Amazon with verified reviews, or a local auto parts store) to ensure authenticity.

- **Verify the fix** by testing the A/C clutch engagement after replacement. If the issue persists, inspect the **compressor clutch, pressure switch, or wiring** for further faults.

- **Consider professional help** if unsure about diagnosing or replacing the relay, especially if other components in the system may be failing.

For most drivers experiencing relay-related A/C issues, this part will provide a **quick, affordable, and effective solution**.

Details:

12 Month Warranty Fitment Notes: Vehicle: 1984 - 1985 Chevrolet Citation II. Parts Geek - For 1984 - 1985 Chevrolet Citation II A/C Control Relay AC Delco 56448HPKM: Review Fitment Notes to Ensure Proper Fit condition: New Brand: Notes: Gold Amperage Rating: 20 A Mounting Bracket Included: No Hardware Meets or Exceeds OEM Specifications: Yes Features: Manufactured meet expectations for fit, form, and function.

part #: 56448hpkm prices

• $28.58-$41.47

specifications chvyacheatercontrols:

• for makes: Chevrolet
• for years: 1984-1985
• brand: Ac Delco
• mpn: 56448hpkm
• part type: Control
• manufacturer warranty: 12 Month Warranty
• notes: Gold New
• years: 1984 1985
• application: Chevrolet Citation Ii A/c Control Relay
• product name 2: A/c Compressor Control Relay
• cs-sku: 400

returns chvyAcheatercontrols:

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

shipping chvyAcheatercontrols:

• transit: 3-7 Days
• type: Fixed
• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• class: Standard
• cost: $0.00

general chvyAcheatercontrols:

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

offer chvyAcheatercontrols:

• availability: In Stock
• started: April 21, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home

seller chvyAcheatercontrols:

• city: New Bedford, MassAchusetts
• rating: 98.8%
• # reviews: 329482

payments chvyAcheatercontrols:

• wallet: Paypal
• other
• credit card: Mastercard

Ac Delco 56448HPKM Is Similar To:

• 00001 Oe Brand Chevy Impala Ac Control Heat Panel Switch Dash (34.6% similar) Levers have surface rust as shown. Driver quality will need restoration. This listing is for a used oem Chevy impala Ac control heat panel switch dash assembly. Comes as pictured...(May 5th, 2018)
• 10409293 00025889236425 Dl6895 Chevy Venture Rear Wiper Ac Control A C Fan Blower Switch Console Multi Function 1s1976 2403-484679 S14695 Cbs-1495 53-12050 (26.4% similar) A rear multi function switch from a 1998 venture. Condition new is new. Used parts are in working order, and tested before being offered for sale when possible. I always have tons of pictures to show condition. Car manufactures do vary design and function within the same production year...(November 12th, 2015)
• Uplander Controller Heat 00140031 09 Relay 07 Ac 08 06 05 (27.9% similar) Attention's compatibility is there to assist, not to guarantee exact part match. Important note. The department will answer all questions or concerns as soon as possible. Heater A/C control switch please match pdif Dare listed this part comes with a 6 month parts warranty no sorry the vehicle shown ...(November 4th, 2014)
• 00140171 3500 Controller 88 Ac 2500 Chevrolet Pickup Heat Gmc 1500 (30.4% similar) Important note. This item will come exactly as stated, unless stated otherwise. The department will answer all questions or concerns as soon as possible. Being a used part. Attention's compatibility is there to assist, not to guarantee exact part match. Heater A/C control switch please match pdif ...(November 5th, 2014)
• Switch Oem Chevy Control Chevrolet Ac 2000 Heater Prizm Climate 0115bc (31% similar) God bless America. For sale Chevy chevrolet prim Ac heater climate control switch oem 0115BC it is in very good condition for the year...(January 15th, 2015)
• 95-02 Pontiac Climate Heater 09350502 Chevy Control Cavalier Sunfire Ac (33.6% similar) Used heater Ac control out of an 01 gunfire in good working condition...(March 24th, 2015)
• Ac Control Cavalier Climate Oem 09350641 Heater Chevrolet 00-02 (29.6% similar) Posted with mobile. You are buying on a used Ac heater control. Please look at pictures. Shipping shipping available only in the lower contiguous 48 us. It is unfortunate, but it is only fair...(December 10th, 2014)
• 09351305 Chevrolet Chevy Blazer Ac Heat Climate Control (42.5% similar) Condition: this is in good used condition with only some minor wear. This worked when I pulled it and will come with a 30 day warranty. Part: climate control part: fitment: many not all Chevy blazer model's. This may fit other years model's as well...(November 24th, 2018)
• 09351335 Chevrolet Chevy Sonoma Ac Heat Climate Control Switch Oem (43.5% similar) Has scratches, scuffs, and marks. This is an Ac heat climate control switch from a 1998 Chevy S-10. Part is as shown. This is a used part...(November 24th, 2018)
• 09356175 98-02 Control Blazer Climate Sonoma S10 Oem Heater C5l2 Ac Computer (21.6% similar) A good, used climate control unit in working condition that works on chevrolet blazer, chevrolet S10, GMC Sonora GMC jimmy and Oldsmobile bravado...(November 14th, 2014)
• 01 Climate Heat 00 Warranty Temp Monte 02 Impala Oem Control 9375491 Cc893 09375491 Carlo Ac 03 (26.3% similar) However, matching the part number off the bad computer when it is in your hand it always the best way to go. Do you repair broken climate controls of course. There are no stupid questions. Part number must match your vehicle part number exactly unless explicitly stated. Do I need to send in my old ...(October 15th, 2014)