---
product_id: 4600247
title: "Neiko 03421A Two Way Universal Adjustable Oil Filter Wrench | 3-Jaw Design | 3/8\" Square Drive Socket | Includes 1/2\" Adaptor | Automotive Tool"
brand: "neiko"
price: "$44.21"
currency: USD
in_stock: true
reviews_count: 13
category: "Neiko"
url: https://www.desertcart.us/products/4600247-neiko-03421a-two-way-universal-adjustable-oil-filter-wrench-3
store_origin: US
region: United States of America
---

# 3-jaw patented grip fits 2.5"–4" filters 3/8" & 1/2" drive compatible Neiko 03421A Two Way Universal Adjustable Oil Filter Wrench | 3-Jaw Design | 3/8" Square Drive Socket | Includes 1/2" Adaptor | Automotive Tool

**Brand:** neiko
**Price:** $44.21
**Availability:** ✅ In Stock

## Summary

> 🔧 Master your oil change game with precision and ease!

## Quick Answers

- **What is this?** Neiko 03421A Two Way Universal Adjustable Oil Filter Wrench | 3-Jaw Design | 3/8" Square Drive Socket | Includes 1/2" Adaptor | Automotive Tool by neiko
- **How much does it cost?** $44.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/4600247-neiko-03421a-two-way-universal-adjustable-oil-filter-wrench-3)

## Best For

- neiko enthusiasts

## Why This Product

- Trusted neiko brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Powerhouse:** Low-profile design fits tight engine spaces—perfect for professional garages and DIY pros alike.
- • **Effortless Grip, Every Time:** Patented 3-jaw design auto-adjusts for a secure hold—no slipping, no fuss.
- • **Built to Last, Ready to Work:** Crafted from durable tool steel with a polished finish for long-lasting performance.
- • **Versatility Meets Convenience:** Compatible with 3/8" and 1/2" drive ratchets or breaker bars, plus includes a 1/2" adapter.
- • **Universal Fit for All Your Rides:** Works seamlessly on most passenger cars and SUVs with filters from 2.5" to 4".

## Overview

The Neiko 03421A is a universal, auto-adjustable oil filter wrench featuring a patented 3-jaw design that fits filters sized 2.5" to 4". Compatible with 3/8" and 1/2" drive tools, it includes a 1/2" adapter and boasts a compact, low-profile build crafted from durable tool steel—ideal for tight spaces and professional-grade automotive maintenance.

## Description

Use the Neiko 3-Jaw Adjustable Oil Filter Wrench for easy removal of spin-on type filters on all passenger vehicles and light-duty trucks. The 3 jaw design is to grip filters tighter as more pressure is applied.

Review: This Tool Worked when Others Didn't. - My other oil filter wrenches (strap type and cup type) were not able to grab tight enough to remove the filter from my Toyota Camry because the filter was on so very tight. With this tool, the more torque you apply, the tighter the grip becomes. My filter was so tight that the each jaw of the tool made indentations in the filter housing (maybe about 1/4 inch deep), but eventually the filter turned. The tool is also relatively low profile so it fit in the tight space around the small Toyota filter. By using a 3/8 inch drive ratchet, the 3/8 to 1/2 inch adapter (also included) is not needed, which makes the overall profile (even with the racket wrench) fairly low which is good for tight spaces.
Review: Sturdy construction, very reliable. - I use this oil filter wrench at work in a professional garage. Not only does it function excellently with standard metal oil filters, I have also been able to loosen cartridge style oil filters with plastic housings with this wrench in a pinch. I am certain that your metal oil filter will fail LONG before this wrench will fail. It has already been used 87 times since delivery last week. The wrench functions as if it were brand new every time I reach for it. And I LOVE the addition of the 1/2 inch adapter. It keeps you from having to grab a separate ratchet, thus lowering labor hours over a standard 9 hour shift. I fully recommend this filter wrench. MUCH BETTER than metal band wrenches for sure!

## Features

- [EASY-TO-USE]: Auto-adjustable oil filter wrench with patented 3-jaw design makes quick work of your oil filter cap to install/remove oil filters.
- [UNIVERSAL DESIGN]: Universal filter wrench works on most passenger and SUV vehicle oil filters ranging in size from 2-1/2” to 4”.
- [VERSATILE]: This universal wrench can be used with any 3/8" or 1/2" drive ratchet or breaker bar because it comes with a ½” adapter or use with a 13/16" wrench.
- [LOW-PROFILE]: This oil change tool is compact with a low-profile design and fits in tight in low clearance areas making the job at the garage a breeze.
- [INCLUDES]: A 3/8 inch to 1/2-inch conversion socket adapter.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000UD0CTQ |
| Best Sellers Rank | #1,931 in Automotive ( See Top 100 in Automotive ) #48 in Oil Filter Wrenches |
| Brand | NEIKO |
| Brand Name | NEIKO |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 1,189 Reviews |
| End Style | Socket End |
| Finish Types | Polished |
| Global Trade Identification Number | 00837013034216 |
| Head Style | Fixed Square |
| Included Components | wrench |
| Is Non Sparking | No |
| Item Length | 9 Inches |
| Item Package Quantity | 1 |
| Item Type Name | Two Way Universal Adjustable Oil Filter Wrench | 3-Jaw Design | 3/8" Square Drive Socket | Includes 1/2" Adaptor | Automotive Tool |
| Item Weight | 13.76 ounces |
| Manufacturer | Ridgerock Tools Inc. |
| Manufacturer Part Number | 03421A |
| Material | Tool Steel |
| Material Type | Tool Steel |
| Measurement Standard | SAE (Inch) |
| Model Number | 03421A |
| Operation Mode | Hydraulic |
| Package Quantity | 1 |
| UPC | 837013034216 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** NEIKO
- **Material:** Tool Steel
- **Item Length:** 9 Inches
- **Item Weight:** 0.86 Pounds
- **Item Package Quantity:** 1

## Images

![Neiko 03421A Two Way Universal Adjustable Oil Filter Wrench | 3-Jaw Design | 3/8" Square Drive Socket | Includes 1/2" Adaptor | Automotive Tool - Image 1](https://m.media-amazon.com/images/I/61aTtJ43xfL.jpg)
![Neiko 03421A Two Way Universal Adjustable Oil Filter Wrench | 3-Jaw Design | 3/8" Square Drive Socket | Includes 1/2" Adaptor | Automotive Tool - Image 2](https://m.media-amazon.com/images/I/61VqFBpLaYL.jpg)
![Neiko 03421A Two Way Universal Adjustable Oil Filter Wrench | 3-Jaw Design | 3/8" Square Drive Socket | Includes 1/2" Adaptor | Automotive Tool - Image 3](https://m.media-amazon.com/images/I/61SiQqIO63L.jpg)
![Neiko 03421A Two Way Universal Adjustable Oil Filter Wrench | 3-Jaw Design | 3/8" Square Drive Socket | Includes 1/2" Adaptor | Automotive Tool - Image 4](https://m.media-amazon.com/images/I/71OITvxN9xL.jpg)
![Neiko 03421A Two Way Universal Adjustable Oil Filter Wrench | 3-Jaw Design | 3/8" Square Drive Socket | Includes 1/2" Adaptor | Automotive Tool - Image 5](https://m.media-amazon.com/images/I/71WrHG5q4zL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This Tool Worked when Others Didn't.
*by W***S on October 27, 2025*

My other oil filter wrenches (strap type and cup type) were not able to grab tight enough to remove the filter from my Toyota Camry because the filter was on so very tight. With this tool, the more torque you apply, the tighter the grip becomes. My filter was so tight that the each jaw of the tool made indentations in the filter housing (maybe about 1/4 inch deep), but eventually the filter turned. The tool is also relatively low profile so it fit in the tight space around the small Toyota filter. By using a 3/8 inch drive ratchet, the 3/8 to 1/2 inch adapter (also included) is not needed, which makes the overall profile (even with the racket wrench) fairly low which is good for tight spaces.

### ⭐⭐⭐⭐⭐ Sturdy construction, very reliable.
*by C***R on October 31, 2022*

I use this oil filter wrench at work in a professional garage. Not only does it function excellently with standard metal oil filters, I have also been able to loosen cartridge style oil filters with plastic housings with this wrench in a pinch. I am certain that your metal oil filter will fail LONG before this wrench will fail. It has already been used 87 times since delivery last week. The wrench functions as if it were brand new every time I reach for it. And I LOVE the addition of the 1/2 inch adapter. It keeps you from having to grab a separate ratchet, thus lowering labor hours over a standard 9 hour shift. I fully recommend this filter wrench. MUCH BETTER than metal band wrenches for sure!

### ⭐⭐⭐⭐ 3-Jaw Universal Oil Filter Wrench
*by A***R on November 11, 2008*

Anybody who has worked on a engine knows that they need a oil filter wrench if they want to remove the oil filter off of the engine. I am sure we have all seen those standard oil filter wrenches where you slip them onto the oil filter and pull that lever which tightens it against the filter. Thats all well and great if your oil wrench is the proper sise for the filter you are trying to remove cause if its not, your out of luck there buddy. I have one of those big rig style oil wrenches and its too big to fit onto 2 inch oil filters and because of that lever, you can't get them up into tight spaces to work them. So I went looking for an oil filter wrench which would work great for small filters, hence, small engine work. Thats when I found the 3-Jaw universal wrench being sold at Amazon.com. I was a bit worried when I bought this because I saw how small it was in the Amazon image, thought it might not be strong enough. Oh how I was wrong, first thing I noticed when I took it out of the box was how heavy it was, deffinetly meant for the most tightest of filters. There was a guy at Amazon who said that he went to a hardware outlet to purchase a adaptor because he did not have a 1/2 drive rachet. Oh how I feel bad for him, he waisted his time, essentally he bought an adaptor to adapt from the adaptor. Hence it came with an adaptor and so if he just pulled the adaptor out, he would have noticed it has a built in 3/8 drive for rachets as well. Oops :( The jaw is fully adjustable from 2 and 1/2 inches all the way up to 4 inches so thats why its universal. All you have to do is put the jaws onto an oil filter, attach your rachet/socket wrench and begin loosening the filter. The only thing I don't like about this design is that you must keep holding it, if you let off pressure even for a second, the jaws will slip off the filter. Its not bad however once you get used to it and it works well. You tighten on the filter the same way, just switch your rachet direction switch. I would have liked to have seen rubber going down the 3 jaws as to protect the filter from getting scratched. If your not worried about cosmetics, then this won't matter to you. But if you have a race car for car shows, you may not want to scratch up your oil filter using this wrench which has no rubber on the jaws. However, this wrench design has a huge advantage over standard filter wrenches in that you hook onto it from the middle of the wrench. What this means is, you have a hard to reach oil filter in that Honda? No problem, stick on a few extensions, then your rachet, stick it up there and wala, instant access! All in all I think this is a great oil filter wrench. But it would have been nice to have a lock mechanism on the wrench to keep it from slipping off the filter if you let off pressure. And it would have been nice to have had rubber going up and down the jaws as to keep the filters from getting scratched. Date Purchased: 11/07-08 Price Paid: $8.00 Recommend: YES

## Frequently Bought Together

- Neiko 03421A Two Way Universal Adjustable Oil Filter Wrench | 3-Jaw Design | 3/8" Square Drive Socket | Includes 1/2" Adaptor | Automotive Tool
- WORKPRO 12" Adjustable Oil Filter Pliers, Wrench Adjustable Oil Filter Removal Tool, Ideal For Engine Filters, Conduit, & Fittings, W114083A

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-06-10*