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Item #:
91622430
21-36 Oil Cap Kit Replacement for Dexter 9K 10K 12K Trailer Axles | Snug 4 in-12 Threaded Fit, Rust and Oxidation Resistant, Caps O-Rings Plugs
Item #:
91622430
KES 3908
Price Details
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Order now and get it around Saturday, August 15
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Well-Made: Made of high-quality materials, it is lightweight, corrosion-resistant, oxidation-resistant, and durable.
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What Stands Out
Durable Plastic Construction
Made from high-quality plastic, these oil caps ensure long-lasting protection against dust and debris, enhancing the longevity of your trailer axles.
Universal Fitment
Designed to fit various Dexter axle models including 9K, 10K, 12K, and 15K, providing versatile solutions for different trailer needs after 1989.
Easy Installation
Quick and straightforward installation process saves time and effort, allowing users to replace axle caps with minimal tools and expertise required.
Product Details
- Compatible with: 21-36 Oil Cap Fits for Dexter 9K (AFTER 10-1-1989), 10K, 12K, and 15K Axles. Note: This does not fit the 10K 2009 and newer "10,000# general duty axles from Dexter #21-88".
- Replace Part Number: 021-036, 021-036-00, 021-256, 021-256-00, 21-036, K21-301-00, K71-148-00.
- Specification: Outside Diameter: 4"; Thread: 4"-12; Depth 1-1/2".
- Well-Made: Made of high-quality materials, it is lightweight, corrosion-resistant, oxidation-resistant, and durable.
- Package Includes: 2 * 21-36 Oil Caps; 2 * O-rings; 2 * Rubber plugs.
| Brand Name | iFJF |
| Model Number | K71-148-00 |
| Manufacturer Part Number | FJ-2136-YB-2 |
| OEM Equivalent Part Number | K71-148-00 |
| Manufacturer | iFJF Direct |
| Unit Count | 2 Count |
| Included Components | O-ring, Oil Cap, Rubber plug |
| Color | black |
| Exterior Finish | Plastic |
| Style Name | Modern |
| Item Dimensions | 2.1 x 4 x 4 inches (5.3 x 10.2 x 10.2 cm) |
| Item Weight | 255 g |
| Compatible with Vehicle Type | Truck |
| Automotive Fit Type | Universal Fit |
| Closure Type | Twist-On |
| Material Type | Plastic |
| Brand | iFJF |
| Material | Plastic |
| Item dimensions L x W x H | 2.1 x 4 x 4 inches (5.3 x 10.2 x 10.2 cm) |
What's in the box
Oil Cap
O-ring
Rubber plug
Who Should Buy?
-
Trailer Owners
Ideal for boat and utility trailer owners needing reliable oil cap replacements for specific axle sizes.
-
Maintenance Enthusiasts
Perfect for DIYers who perform regular maintenance and repairs on their trailer axles for optimal performance.
-
Commercial Users
Beneficial for small businesses managing multiple trailers requiring quick and efficient oil cap replacements.
-
Non-Dexter Axle Users
Not suitable for trailers with axles from brands other than Dexter, limiting its compatibility.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Which axles are compatible with this oil cap?
Answer: It fits Dexter 9K (after 10-1-1989), 10K, 12K, and 15K axles. -
Question:
Does this product fit 2009 and newer 10K general duty axles?
Answer: No, it does not fit the 10K 2009 and newer 10,000# general duty axles from Dexter #21-88. -
Question:
What is included in the package?
Answer: The package includes 4 oil caps, 4 O-rings, and 4 rubber plugs.
iFJF Oil Filler Caps K71-148-00 Editorial Review
The iFJF 21-36 Oil Cap Kit Replacement for Dexter axles has received mixed feedback from customers regarding its compatibility and functionality. Several users have highlighted issues related to fitting; specific reports indicate that while the thread on the caps appears to match original designs, they do not screw onto the hub correctly for some models. This has led to frustration, particularly for those with older trailers or specific Dexter axle configurations, as evidenced by multiple reviews advising against this product for certain axle sizes like the Dexter 12k. Conversely, some users have expressed satisfaction, particularly noting that the caps fit their older trailer models perfectly. This suggests that while the product may meet the needs of certain customers, it doesn't universally cater to all Dexter axle types. Another point raised by customers pertains to the amount of oil capacity offered by the caps, with remarks implying that they may not perform as well as original caps in this regard. Overall, the iFJF Oil Cap Kit has been met with a divided reception, demonstrating the importance of confirming fitment compatibility before purchase. **
Customer Reviews & Ratings
94 customers ratings
-
5 Star
67%
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4 Star
6%
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3 Star
7%
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2 Star
2%
-
1 Star
18%
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Pros
- Fits some older trailer models well
- Appears to match original thread designs
Cons
- InConsistent fit across different Dexter axles
Platform Trust & Buyer Confidence
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Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
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22 July 2026 · via Trustpilot
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23 July 2026 · via Trustpilot
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KES 3908
Order now and get it around Saturday, August 15
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Features & Benefits
- Replacement for part numbers 2136 and K71-148-00.
- Compatible with Dexter 9K (after 10-1-1989), 10K, 12K, and 15K axles.
- Included in the package: 4 Oil Caps, 4 O-rings, and 4 Rubber plugs.
- Specifications: Outside Diameter of 4”, Thread 4-12, Depth 1-1/2.”
- Constructed with high-quality materials for durability and resistance to corrosion and oxidation.
- Lightweight design ensures easy handling and installation.
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