# Westin Automotive 21-4130 - Platinum Series 4" Cab Length Stainless Steel Oval Step Bar

Westin Platinum Series Oval Step bars are bigger than the traditional Westin 3 inch steps. This added strength and wider step area will have your passengers thanking you for the added ease and comfort! Installation is easy and requires no drilling. The bars come packaged with application-specific mounting brackets.

Specs:

• Platinum Series 4 in. Oval Step Bar Cab Length

• Stainless Steel

• For Double Cab

P65 Warning: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.

Brand: Westin Automotive

Part Number: 21-4130

UPC: 707742090251

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

2019

Chevrolet

SILVERADO 1500 CUSTOM, CUSTOM TRAIL BOSS, HIGH COUNTRY, LT, LT TRAIL BOSS, LTZ, RST, SSV, WT

Crew Cab

2020

Chevrolet

SILVERADO 1500 CUSTOM, CUSTOM TRAIL BOSS, HIGH COUNTRY, LT, LT TRAIL BOSS, LTZ, RST, SSV, WT

Crew Cab

2021

Chevrolet

SILVERADO 1500 CUSTOM, CUSTOM TRAIL BOSS, HIGH COUNTRY, LT, LT TRAIL BOSS, LTZ, RST, SSV, WT

Crew Cab

2022

Chevrolet

SILVERADO 1500 CUSTOM, CUSTOM TRAIL BOSS, HIGH COUNTRY, LT, LT TRAIL BOSS, LTZ, RST, WT, ZR2

Crew Cab

2023

Chevrolet

SILVERADO 1500 CUSTOM, CUSTOM TRAIL BOSS, HIGH COUNTRY, LT, LT TRAIL BOSS, LTZ, PPV, RST, WT, ZR2

Crew Cab

2024

Chevrolet

SILVERADO 1500 CUSTOM, CUSTOM TRAIL BOSS, HIGH COUNTRY, LT, LT TRAIL BOSS, LTZ, PPV, RST, WT, ZR2

Crew Cab

2025

Chevrolet

SILVERADO 1500 CUSTOM, CUSTOM TRAIL BOSS, HIGH COUNTRY, LT, LT TRAIL BOSS, LTZ, PPV, RST, WT, ZR2

Crew Cab

2026

Chevrolet

SILVERADO 1500 CUSTOM, CUSTOM TRAIL BOSS, HIGH COUNTRY, LT, LT TRAIL BOSS, LTZ, PPV, RST, WT, ZR2

Crew Cab

2019

GMC

SIERRA 1500 AT4, BASE, DENALI, ELEVATION, SLE, SLT

Crew Cab

2020

GMC

SIERRA 1500 AT4, BASE, DENALI, ELEVATION, SLE, SLT

Crew Cab

2021

GMC

SIERRA 1500 AT4, BASE, DENALI, ELEVATION, SLE, SLT

Crew Cab

2022

GMC

SIERRA 1500 AT4, AT4X, DENALI, DENALI ULTIMATE, ELEVATION, PRO, SLE, SLT

Crew Cab

2023

GMC

SIERRA 1500 AT4, AT4X, DENALI, DENALI ULTIMATE, ELEVATION, PRO, SLE, SLT

Crew Cab

2024

GMC

SIERRA 1500 AT4, AT4X, DENALI, DENALI ULTIMATE, ELEVATION, PRO, SLE, SLT

Crew Cab

2025

GMC

SIERRA 1500 AT4, AT4X, DENALI, DENALI ULTIMATE, ELEVATION, PRO, SLE, SLT

Crew Cab

2026

GMC

SIERRA 1500 AT4, AT4X, DENALI, DENALI ULTIMATE, ELEVATION, PRO, SLE, SLT

Crew Cab

### FAQ

**Will this fit my vehicle?**  
Please verify the year, make, model and any compatibility notes in the Vehicle Fitment Table above before purchase.

**What part number is this?**  
The listed part number is 21-4130.

**Is this product designed for direct replacement?**  
Confirm the intended application against the manufacturer specifications before ordering.

**Should I confirm fitment before ordering?**  
Yes. Compare your original part and vehicle details before ordering.

### Common Searches

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## Details

- **Price:** 1391.84 CAD
- **Vendor:** Westin Automotive
- **Tags:** 21-4130, Westin Automotive

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1391.84 CAD | In stock |

## Images

- Westin Automotive 21-4130 - Platinum Series 4" Cab Length Stainless Steel Oval Step Bar

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/westin-automotive-21-4130-platinum-series-4-cab-length-stainless-steel-oval-step-bar)
> Updated: 2026-10-30