1. Pitman & Idler Arms Suspension Steering For Sale
  2. sku: 15715000633953881
  3. AC DELCO 28MZMXX27

AC DELCO 28MZMXX27 Idler Arm

fits model: C1500, K3500, C2500, K2500, K1500, C3500, Blazer, Suburban. year: 1988.

28mzmxx27 Ac Delco Idler Arm For C1500 K3500 Blazer C2500 Suburban K2500 K1500 C3500 1988

( Brand: Ac Delco ), ( Manufacturer Part Number: 28MZMXX27 ), ( Type: Idler Arm ), ( Fits 1: 1988-1992 Chevrolet C1500 ), ( Fits 2: 1988-1992 Chevrolet K3500 ), ( Fits 3: 1992 Chevrolet Blazer ), ( Fit Note: Gold New ), ( Manufacturer Warranty: 12 Month Warranty ), ( Attention: Please Read All Notes To Confirm Fitment ), ( Cs-sku: 400 )

Review AC DELCO 28mzmx27 Idler Arm fits BLAZER SUBURBAN C1500 K3500 C2500 K2500 K1500 C3500 1988

The **AC Delco 28MZMXX27 Idler Arm** is a high-quality, precision-engineered replacement part designed specifically for the front suspension system of select General Motors full-size trucks, including the **1988 Chevrolet C1500, K3500 Blazer, C2500 Suburban, K2500, K1500, and C3500** models. This durable component plays a critical role in maintaining proper alignment and tension within the steering and suspension linkage, ensuring smooth operation, accurate steering response, and optimal handling under various driving conditions. Crafted from robust, corrosion-resistant materials, the **28MZMXX27 Idler Arm** is built to withstand the demands of heavy-duty use, harsh weather, and prolonged exposure to road debris, making it an ideal long-term solution for restoring or upgrading your vehicle s suspension performance.

The idler arm functions as a pivotal pivot point for the steering linkage, allowing the tie rods to move freely while keeping the steering system properly tensioned. Over time, wear and tear such as rust, bent brackets, or degraded bushings can lead to excessive play, a loose or clunking sensation in the steering wheel, or misaligned wheels, all of which compromise safety and ride quality. The **AC Delco 28MZMXX27** addresses these issues by providing a tight, secure fit with minimal clearance, reducing unnecessary movement and restoring the suspension s intended functionality. Its design ensures compatibility with the original equipment manufacturer (OEM) specifications, guaranteeing seamless integration with the truck s existing components, including the steering linkage, tie rods, and suspension mounts.

For mechanics and DIY enthusiasts alike, this idler arm is engineered for ease of installation, featuring standard mounting points and a straightforward replacement process. Whether you re addressing a worn-out part as part of a routine maintenance check or replacing a damaged component following an accident or prolonged exposure to rough terrain, the **28MZMXX27** delivers the reliability and performance expected from an AC Delco product. Its robust construction and high-quality materials help prevent premature failure, reducing the likelihood of future suspension-related issues. By upgrading to this genuine replacement, you not only restore your vehicle s handling and steering precision but also extend the lifespan of your truck s suspension system, ensuring a smoother, safer, and more enjoyable driving experience for years to come.

### **AC Delco 28MZMXX27 Idler Arm (1988 GMC C/K Trucks C1500, K3500 Blazer, C2500 Suburban, K2500, K1500, C3500)**

#### **Pros of buying a AC Delco 28MZMXX27 Idler Arm**

1. **OEM Quality and Fit** AC Delco is a trusted aftermarket brand that closely replicates original equipment manufacturer (OEM) parts. The idler arm is designed to fit 1988 GMC trucks and Blazers without modification, ensuring proper alignment and function.

2. **Reliability** AC Delco parts are known for durability, often matching or exceeding the lifespan of OEM components. This idler arm should provide long-term service if properly installed and maintained.

3. **Warranty Coverage** AC Delco typically offers a warranty (usually 1 2 years or 10,000 20,000 miles), providing peace of mind in case of premature failure.

4. **Cost-Effective Replacement** Compared to sourcing a genuine OEM part (which may be difficult or expensive), the AC Delco idler arm is a budget-friendly alternative without sacrificing quality.

5. **Easy Availability** This part is widely stocked at auto parts stores (AutoZone, O Reilly, RockAuto, etc.) and online retailers, reducing lead times for replacement.

6. **Prevents Further Damage** A failing idler arm can cause excessive wear on the serpentine belt, tensioner, and other drivetrain components. Replacing it early avoids costly secondary repairs.

7. **Direct Replacement** No adapters or modifications are needed; it installs as a drop-in replacement for the stock part.

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#### **Cons of buying a AC Delco 28MZMXX27 Idler Arm**

1. **Aftermarket Brand Variability** While AC Delco is reputable, some aftermarket parts may have slight inconsistencies in machining or material quality compared to OEM parts. This could lead to minor wear or noise over time.

2. **Potential Counterfeit Concerns** In rare cases, counterfeit AC Delco parts may enter the market, especially from unlicensed sellers. Always purchase from authorized retailers to avoid this risk.

3. **Limited Customization** Unlike some high-end aftermarket parts, this idler arm does not offer performance upgrades (e.g., reinforced bushings or reduced friction). It is a functional replacement, not a premium upgrade.

4. **Installation Requires Attention** If the mounting bushings are worn or the pivot points are seized, the new idler arm may not perform optimally. Proper installation (including lubrication and alignment) is critical.

5. **No Long-Term Cost Savings** While initially cheaper than OEM, if the part fails prematurely (unlikely but possible), replacement costs could offset the initial savings.

6. **Compatibility Doubts (Rare Cases)** While designed for 1988 models, some variations in drivetrain configurations (e.g., manual vs. automatic, different belt routing) could theoretically cause fitment issues. Always verify compatibility with your specific truck s build sheet.

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### **Conclusion**

The **AC Delco 28MZMXX27 idler arm** is an excellent **cost-effective, reliable, and readily available** replacement for the 1988 GMC C/K trucks and Blazers. It offers OEM-like performance with the added benefits of warranty coverage and ease of acquisition. For most owners, this part will serve as a **direct, functional, and durable** solution without major drawbacks.

**Potential exceptions** where caution is advised:

- If you suspect the part is counterfeit (purchase only from trusted sources like AutoZone, RockAuto, or official dealers).

- If the mounting hardware (e.g., bushings) is severely worn, the new arm may not resolve belt tension issues without additional repairs.

- If you re running high-performance accessories (e.g., superchargers, large alternators), consider a **high-quality aftermarket or OEM-grade** idler arm for extra longevity.

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### **Final Recommendation**

**Buy the AC Delco 28MZMXX27 idler arm** unless:

- You have a specific reason to prefer an OEM part (e.g., warranty concerns on aftermarket components).

- You re experiencing additional drivetrain issues (e.g., seized tensioner, worn belt pulleys) that require a full system overhaul.

**Steps to Ensure Success:**

1. **Verify compatibility** with your exact truck (e.g., manual vs. automatic, belt routing).

2. **Inspect the mounting area** for rust, damage, or worn bushings before installation.

3. **Lubricate the pivot points** with grease during installation.

4. **Replace the serpentine belt** if it s cracked, glazed, or excessively worn.

5. **Follow manufacturer torque specs** for bolts to avoid overtightening.

For the average 1988 GMC owner, this part is a **smart, practical choice** that balances quality, cost, and convenience.

Details:

Induction hardened to match OE fatigue life. Grease able where applicable: Allows new lubricant to flush contaminants from the assembly, reducing corrosion and wear. Detailed Applications Vehicle, 1992 Chevrolet Blazer, C2500 Suburban, 1988 - 1992 K25 K2500 K3500. Undergoes extreme impact, wear, and fatigue testing to help with quality durability.

Vehicle, Fitment Notes: Heavy Duty Design, 1988 - 1992 Chevrolet C15 1992 C1500 Suburban, C25 K15 K1500 Suburban. Design helps reduce side-to-side play. Product Specifications Finish:Painted, Meets or Exceeds OEM Specifications:Yes. Idler Arm 28MZMx27 for C1500 K3500 Blazer C2500 Suburban K2500 K1500 C3500 1988: Brand: AC Delco condition: New, Notes Gold New Features: Corrosion-resistant coating.

Manufactured at gifts 16949-certified facilities to help with consistent high-quality.

part #: 28mzmxx27 price

  • $103.08

specifications pitmanidlear:

  • for models: C1500, K3500, C2500, K2500, K1500, C3500, Blazer, Suburban
  • brand: Ac Delco
  • mpn: 28mzmxx27
  • type: Idler Arm
  • fits 1: 1988-1992 Chevrolet C1500
  • fits 2: 1988-1992 Chevrolet K3500
  • fits 3: 1992 Chevrolet Blazer
  • fit note: Gold New
  • manufacturer warranty: 12 Month Warranty
  • attention: Please Read All Notes To Confirm Fitment
  • cs-sku: 400

seller pitmanidlear:

  • rating: 97.1%
  • # reviews: 57827
  • city: San Bernardino, California

general pitmanidlear:

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

shipping pitmanidlear:

  • transit: 4-7 Days
  • service: Standard
  • class: Standard
  • type: Fixed
  • cost: $0.00

offer pitmanidlear:

  • started: May 7, 2026
  • availability: In Stock
  • sold: 0
  • quantity: 1
  • options: Ship-to-home

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  • policy: Returns Accepted
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  • time: 30 Days
for models: c1500, k3500, c2500, k2500, k1500, c3500, blazer, suburban, type: idler arm, fits 1: 1988-1992 chevrolet c1500, fits 2: 1988-1992 chevrolet k3500, fits 3: 1992 chevrolet blazer, fit note: gold new, manufacturer warranty: 12 month warranty, attention: please read all notes to confirm fitment, cs-sku: 400,
category: auto parts > car truck parts accessories > steering suspension > pitman idler arms, sku: 15715000633953881,
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  • New. Offer #1 priced at $103.08 + $0.00 shipping estimate = $103.08* total. 1988-1992 Chevrolet C1500. 1992 Chevrolet C2500 Suburban.FREE SHIPPING

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