Pay in installments of $49.99 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Earls Billet Oil Thermostat - 503ERLOverview: These billet aluminum units facilitate quick oil warm up. Opening starts at 160*F (71. 1C) and they are fully open at 180*F (82. 2C). Features: Made For Most Typical Applications Billet Aluminum Sandwich Style Facilitate Quick Oil Warm Up Application: Year Make Model Submodel Engine Size Universal Specs: Brand Earls Center Stud Diameter 13 16 16 Emission Code 5 Finish Natural Fully open 180 Degrees Farenheit Inner O Ring Diameter 2. 887
Overview:
These billet aluminum units facilitate quick oil warm up. Opening starts at 160*F (71.1C) and they are fully open at 180*F (82.2C).Features:
- Made For Most Typical Applications
- Billet Aluminum Sandwich Style
- Facilitate Quick Oil Warm-Up
Application:
| Year | Make | Model | Submodel | Engine Size |
|---|---|---|---|---|
| Universal |
Specs:
| Brand | Earls |
|---|---|
| Center Stud Diameter | 13/16-16 |
| Emission Code | 5 |
| Finish | Natural |
| Fully open | 180 Degrees Farenheit |
| Inner O-Ring Diameter | 2.887 Inches |
| Material | Billet Aluminum |
| O-Ring Cross Section | .139 Inches |
| Outer O-Ring Diameter | 3.387 Inches |
| Port Size | 7/8-14 Female (-10 O-Ring Boss) |
| Product Type | Oil Cooler |
| Starts to open | 160 Degrees Farenheit |
| Thickness | 1.475" |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 26 reviews
Sort
Product Reviews
★★★★★ 5
Great socks for the price!
Size: 6-10, Color: Black, Size: 6-10, Color: Black
I love these socks, they are perfect no shows but the material is thick enough for toes not too go thru. The grip is perfect and keeps the sock in place all day. I would definitely order true to size as the fit was perfect. I was surprised to find these socks at the price I did, especially when I got the socks in both black and white.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 9, 2025
★★★★★ 5
Best non-slip no show sock!
Size: 6-10, Color: Black
I love these socks! I wear them mostly with my slip on vans. The are thin so your feet can breathe (I hate thick socks). They have a grip on the heal so that they don't slip off of your feet, and it actually works! My only negative about these socks would be that if you have bigger than a size 8 foot, I would not purchase them because they do run a bit small. I wear a size 7 and they fit perfectly! They do look very tiny upon unpacking, but they stretch to the according size. I would also recommend letting them air dry after washing them and not putting them in the dryer. The first pair I purchased, I made the mistake of drying them and they shrank to an unbelievably small size. I've had my second set of socks for over 4 months now and have not had any problems since Ive been air drying them. I have not encountered any problems with them tearing as other have stated. Even though these are thin socks, they seem to be made quite well in my opinion.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2022
★★★★★ 5
I buy these again and again through the years!
Size: Medium, Color: Austin Brown Assorted (6-pairs)
Love these. After a year or two I wear holes in the bottoms because I wear them so much. Worth the little bit higher price because of the fit and comfort. Love how they are truly no show
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 18, 2025
★★★★★ 4
Good quality but tight on toes
Size: 6-10, Color: White/Assorted
These are great socks that stay in place, but they scrunch my toes together like crazy. My feet are normal width. When I first started wearing them I noticed my feet would ache after an hour or two.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
My New Favorite Socks
Size: 6-10, Color: Halo Gray/Assorted
These have quickly become mine and my mom's favorite socks. We wear them with tennis shoes, Hey Dudes, and more. The fabric is incredibly soft and comfortable, they do not budge/fall in my shoe, and are extremely well made. I have become so attached to these socks, that I no longer want any other brand.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 4, 2025