AC DELCO OLX-ACD45C1043-CL360A56 Idler Arm 199608609248 Acdelco

( Brand: Ac Delco ), ( Manufacturer Part Number: OLX-ACD45C1043-CL360A56 ), ( Type: Automotive ), ( Oe/oem Part Number: 19460536 ), ( Color: Black ), ( Fitment Type: Direct Replacement ), ( Generic Keywords 1: Part ), ( Generic Keywords 2: See Notes ), ( Intended Use: Automobiles ), ( Surface Finish: Painted ), ( Manufacturer Warranty: 1 Year ), ( UPC: 199608609248 )

Review AC DELCO Genuine Acdelco Chevy Idler Arm Black Painted Shape fits BLAZER S10 1990–1994

The **ACDelco OEM Idler Arm (Part Number: OLX-ACD45C1043 / CL360A56)** is a precision-engineered, high-quality replacement component designed specifically for the **1990 1994 Chevrolet S10 and GMC Blazer** vehicles, ensuring seamless operation of the serpentine belt system. Crafted to exact factory specifications, this idler arm is built with **durable die-cast zinc alloy construction**, providing superior strength and resistance to wear, vibration, and corrosion critical factors in maintaining optimal tension and alignment of the engine s accessory belts. The arm features a **smooth, low-friction bearing** that minimizes belt slippage and reduces unnecessary strain on the alternator, air conditioning compressor, and power steering pump, thereby extending the lifespan of these components and improving overall drivability. Engineered with a **precision-machined pulley surface**, this idler arm delivers consistent performance under varying engine loads, whether during cold starts, high-speed cruising, or heavy towing conditions. Its **direct bolt-on compatibility** with the original equipment mounting points ensures a secure, interference-free installation, eliminating the need for additional modifications or adjustments. Ideal for mechanics and DIY enthusiasts alike, this ACDelco part is a trusted **OEM-quality alternative** to aftermarket options, offering reliability, longevity, and the confidence of a brand synonymous with automotive excellence. Whether replacing a worn-out arm due to belt misalignment, unusual noises, or preventive maintenance, this idler arm is the perfect choice for restoring smooth, quiet operation to your classic or modern S10/Blazer s serpentine belt system.

**Pros and Cons of buying a AC Delco OLX-ACD45C1043-CL360A56 Idler Arm for a 1990-1994 Chevy S10/Blazer**

### **Pros**

1. **Direct Fitment** This part is specifically designed for the 1990-1994 Chevy S10 and Blazer, ensuring compatibility without modifications. It matches the original equipment manufacturer (OEM) specifications, reducing the risk of installation issues.

2. **Quality and Reliability** AC Delco is a well-known brand under General Motors, known for producing durable aftermarket automotive parts. The idler arm is built to withstand the stress of tensioning the serpentine belt system, which is critical for preventing belt slippage and premature wear on components like the alternator, power steering pump, and A/C compressor.

3. **Cost-Effective Replacement** Compared to OEM parts, this aftermarket idler arm is often significantly cheaper while maintaining high performance. It provides a budget-friendly solution for restoring proper belt tension without sacrificing quality.

4. **Ease of Installation** The part is straightforward to install, requiring basic tools and mechanical knowledge. Most owners or even those with minimal DIY experience can replace it themselves, saving labor costs associated with professional installation.

5. **Prevents Further Damage** A failing idler arm can cause excessive belt wear, leading to costly repairs for the alternator, water pump, or A/C compressor. Replacing it proactively can extend the lifespan of these components and avoid unexpected breakdowns.

6. **Widely Available** As an aftermarket part, it is readily available through online marketplaces (like OLX), auto parts stores, and specialty suppliers. This makes it easy to source, even for those in remote areas.

---

### **Cons**

1. **Potential Counterfeit or Low-Quality Units** When purchasing from third-party sellers (e.g., OLX), there is a risk of receiving counterfeit or substandard parts. These may fail prematurely, leading to repeated replacements and frustration. Always verify the seller s reputation and part authenticity.

2. **Mismatched Specifications** While the part is advertised for your vehicle, there is a slight chance of incorrect year or model fitment, especially if the seller mislabeled it. Double-check the part number and compatibility before purchasing to avoid returns or installation problems.

3. **No Warranty or Return Policy** Buying from private sellers (common on OLX) often means no warranty or return options. If the part fails shortly after installation, you may be left without recourse, unlike purchasing from a retailer with a return policy.

4. **Installation Challenges** If the idler arm is seized or rusted in place, removal can be difficult, requiring penetrating oil, heat, or specialized tools. In some cases, this may necessitate professional help, adding unexpected costs.

5. **Compatibility with Aftermarket Belts** Some aftermarket serpentine belts may have slightly different tensioning requirements than OEM belts. While this idler arm should work fine, ensure the belt you use is compatible with the tensioner to avoid premature wear.

6. **Limited Brand Support** Unlike purchasing from a dealership or authorized retailer, AC Delco parts bought from private sellers lack access to technical support or replacement parts if the idler arm fails. This can be inconvenient if issues arise post-installation.

---

### **Conclusion**

The **AC Delco OLX-ACD45C1043-CL360A56 idler arm** is a **strong, cost-effective choice** for replacing a worn or failing idler arm in your 1990-1994 Chevy S10 or Blazer. Its direct fitment, reliability, and ease of installation make it an attractive option for DIY enthusiasts and those seeking a budget-friendly replacement. However, the **primary risk** lies in purchasing from an unverified seller, which could result in counterfeit or damaged parts.

To mitigate these risks, **verify the seller s reputation**, confirm the part number and compatibility, and consider purchasing from a trusted retailer (e.g., AutoZone, RockAuto, or a local auto parts store) if possible. If buying from OLX, inspect the part upon receipt for signs of wear, damage, or authenticity (e.g., check for proper labeling, packaging, and manufacturer markings).

---

### **Recommendation**

- **Inspect the part thoroughly** before accepting delivery. Look for rust, cracks, or signs of wear. Request clear photos of the part in person or during pickup.

- **Ask for proof of authenticity** (e.g., original packaging, invoices, or seller verification).

- **Consider buying from a seller with high ratings** and positive feedback for AC Delco parts.

- **Test the idler arm** by applying pressure to the pulley it should rotate smoothly without excessive play or resistance.

- Purchase from a reputable auto parts store (e.g., AutoZone, O Reilly, or online suppliers like RockAuto or Amazon). This ensures a warranty, return policy, and genuine AC Delco part.

- Check for **compatible serpentine belts** at the same time to ensure proper tensioning.

- Use **penetrating oil** (like PB Blaster) if the idler arm is stuck.

- Follow a **step-by-step guide** (e.g., from a trusted source like YouTube or a repair manual) to ensure correct installation.

- **Tighten bolts to specification** (typically 20-30 ft-lbs for idler arm bolts) to avoid overtightening or loosening over time.

- After installation, **start the engine** and verify that the belt is properly tensioned (no excessive sag or slipping).

- Listen for **unusual noises** (squealing, grinding) during operation, which could indicate improper tension or a related issue.

**Final Verdict:** The AC Delco idler arm is a **solid replacement part** for your vehicle, provided you take precautions to ensure its quality. For the best outcome, **prioritize purchasing from a trusted source** and perform a careful inspection before installation. If budget allows, a retailer purchase eliminates the risks associated with private sellers.

Details:

Would be happy to do business again in the future. The item arrived quickly, well packaged, and exactly as described. Honest and reliable highly recommended for anyone considering buying from them. Shape: L Shaped.

I really appreciate the careful packaging to ensure everything arrived safely. From precision-engineered lighting solutions to high-quality replAcement parts, these top-rated items are trusted by drivers and mechanics. Great value and quality as they were not only beautiful but CAPA approved. CHEVROLET: S10 BLAZER 1990 -1994.

Fast shipping, Well packaged, as described and great price. Jody ne: Verified Purchaser. Item received new, as described, of apparent OEM quality. I would gladly purchase again in the future.

Item was as described Arrived very quickly and packed well in good condition. Ruico37: Verified Purchaser. Whether you're upgrading for or restoring factory performance, our picks deliver excellent value and dependable reliability. Lasconi95: Verified Purchaser.

My headlights arrived very quickly, were well packaged and in great condition. Priced right, well packed for shipping, sent lightning quick. Chamber-58: Verified Purchaser. Part: Idler Arm.

Color: BlAck. Finish: Painted. What I was looking for at a fair price, Accurately described, packed well and shipped quickly.

part #: 199608609248 prices

• $61.23-$77.94

specifications pitmanidlear:

• for models: S10, Blazer
• for makes: Chevy
• for years: 1990-1994
• brand: Ac Delco
• mpn: Olx-acd45c1043-cl360a56
• type: Automotive
• oe/oem part number: 19460536
• color: Black
• fitment type: Direct Replacement
• generic keywords 1: Part
• generic keywords 2: See Notes
• intended use: Automobiles
• surface finish: Painted
• manufacturer warranty: 1 Year
• upc: 199608609248

offer pitmanidlear:

• sold: 0
• options: Ship-to-home
• quantity: 1
• started: February 19, 2026
• availability: In Stock

shipping pitmanidlear:

• service: Standard
• cost: $0.00
• class: Standard
• type: Fixed
• transit: 2-6 Days

seller pitmanidlear:

• city: West Chicago, IL
• rating: 99.6%
• # reviews: 129312

general pitmanidlear:

• condition: New
• Car Truck Parts Accessories > Steering Suspension > Pitman Idler Arms

payments pitmanidlear:

• credit card: Mastercard
• wallet: Apple-pay
• other

returns pitmanidlear:

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

Ac Delco OLX-ACD45C1043-CL360A56 Is Similar To:

• 22064788 Ac Delco Chevy Malibu Pontiac Grand Am Set Pair Of (29.4% similar) Chevy Malibu Pontiac grand am set pair of 2 rear shock struts gm nos...(October 24th, 2018)
• 3767052 Chevrolet Gmc Ac Delco (11.3% similar) N casting number GMT3766484A - factory for c series C10 C20 trucks excl 4WD may fit other makes and model's as well it is up to you verify part pictures against your application dusty former collectors inventory kept in nice dry storage nos condition shown light surface rust from sitting has been ...(October 27th, 2017)
• 3786561 Chevrolet Gmc Ac Delco (11.3% similar) Casting number GMT3767165 - factory for C70 C80 series trucks w 7,000LB axle power steering 2ND design excl tilt may fit other makes and model's as well it is up to you verify part pictures against your application dusty former collectors inventory kept in nice dry storage nos condition shown light ...(October 27th, 2017)
• 45c0009 Ac Delco Pitman Arm (21.7% similar) Some manufacturers require that you register your product to Activate its warranty. Please for any questions. Each warranty gives you specific rights, and may have other rights which vary from state. The manufacturers warranty shall be exclusive remedy for any such product defect or failure...(January 4th, 2018)
• 46c1001a Ac Delco New Idler (23.2% similar) Please for any questions. Each warranty gives you specific rights, and may have other rights which vary from state. The manufacturers warranty shall be exclusive remedy for any such product defect or failure. Some manufacturers require that you register your product to Activate its warranty...(October 7th, 2017)
• 5679142 W-3864703 Arm Chevrolet Gmc Ac Delco Genuine Gm Chevy Impala Belair (33.3% similar) ...(October 29th, 2018)
• 88911274 Acdelco Ac Delco Idler (28.2% similar) New in the package unopened idler arm...(January 10th, 2018)
• 88911267 45c1013 Ac Delco New Idler Arm Chevy Olds Pontiac Firebird Camaro (32.4% similar) Sometimes packages have to go by another delivery service. Return shipping is absolutely free. Box, APOS, fops, or military mail box. The shipping price quoted in the offer is for areas in the continental USA only 48 states. You can call FedEx too at FedEx. Shipping price for this item is to the ...(April 13th, 2016)
• 9421435 Gr.6.210 Ac Delco Genuine Oem Gm Gmc Chevy Chevrolet 1964-70 Medium Truck Nos King Pin Thrust Bearing Pair (37.3% similar) ...(December 18th, 2015)
• 15-20455 Acdelco Gm Ac Compressor Buick Skylark Chevy Cavalier Malibu Pontiac Sunfire Grand Am 1135437 (31.9% similar) Brand new in box...(April 2nd, 2016)
• G3500 45c0035 Acdelco Professional Steering Pitman Arm Fits 1983-1996 Gmc G2500 G1500 Ac 88911220 K6220 Fa1393 Fa1393gl 445-1035b (27.5% similar) Extirpates...(July 1st, 2016)