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Description
Rywire 02-04 Honda K-Series Mil-Spec Engine Harness w/OBD2 02-04 RSX K20 Sensors**Chassis Adapter Harness REQUIRED!!** Version 2 of the Rywire K series Milspec Engine HarnessThis version was created to facilitate a more universal chassis, and harness routing preference. This style can be routed more like the OEM k series engine harness through the center or more to the right on the firewall than it's Version 1 counterpart. This routing method is ideal for our (RHD) Right Hand Drive customers however NOT exclusive to RHD chassis
**Chassis Adapter Harness REQUIRED!!**Version 2 of the Rywire K-series Milspec Engine Harness
This version was created to facilitate a more universal chassis, and harness routing preference. This style can be routed more like the OEM k-series engine harness through the center or more to the right on the firewall than it's Version 1 counterpart. This routing method is ideal for our (RHD) Right Hand Drive customers however NOT exclusive to RHD chassis and does work fine on a LHD chassis.
Version 2 is also routed in a way which allows you to get around aggressive exhuast manifolds.
About the Mil-Spec K-Series Engine Harness:
This harness offers Mil-Spec Teflon coated wire. Standard wall ethylene-tetrafluoroehtylene (ETFE) insulation ( also known as Tefzel ) designed for aerospace applications where weight, dimensional tolerance, and mechanical durability are required. This wire exhibits high chemical and radiation resistance. using standard factory wire colors with a maximum heat rating of 200°C . The Teflon coated wire is loomed with The highest quality Raychem DR-25 heat shrink covering, and adhesive lined wire junctions to keep moisture out. Each connector is crimped with pneumatic heads to ensure an OEM crimp every time, then tagged with a yellow identification label for easy installation. All heavy interference circuits are protected and grounded with proper wire covering.
Our Mil-Spec harnesses are 100% quality tested pin to pin, and resistance checked to ensure no voltage fluctuations. These are the best harnesses money can buy. NO CORE is necessary when buying a harness from us!
This harness follows an OEM style configuration meaning that you'll still need a interior Computer adapter for your chassis - see the K-Series Computer Adapter link and add-option below!
Rywire also offers a Firewall mounted Mil-Spec connector that will allow easy engine removal for quick engine changes and customization. It can be added along with the Mil-spec Firewall Plate for a show-quality setup.
These harnesses are warrantied and guaranteed to work, we provide excellent installation phone support and troubleshooting to ensure this reputation for quality, however they are non-refundable.
Please ask about our custom Mil-Spec wire harness looms that are not listed online.
HARNESS CONNECTOR LIST:
- VTEC solenoid
- VTC
- Oil pressure sending unit
- Crank Sensor (CKP)(02-04 K20 style)
- Coils 1-4
- Cam (CPS) Exhaust Side
- Top Dead Center sensor (TDC) Intake Side
- Engine Coolant Temp (ECT)(02-04 K20 style)
- Knock Sensor (KS)(02-04 K20 style)
- Intake Air Temperature (IAT)
- Alternator
- Manifold Air Pressure (MAP)
- Throttle Position Sensor (TPS)
- Idle control motor
- Electronic speed sensor (VSS)
- Injectors 1-4
- h20 sending unit (for gauge cluster)
- Reverse Lights
- Reverse Lockout solenoid
- Starter signal
- Computer plugs A and B
- Power distribution cap
- Ground
- 2 Extra Wires
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
4.6 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Great value
Color: Black/White/Silver-Tone
This has to be the best watch on the market for the money. It's low profile, easy to read, super classic and just looks great with everything. I have small wrists so this is the perfect size, not too intrusive, plus I can easily change out the band to switch up colors. I get so many compliments.
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Reviewed in the United States on January 6, 2026
★★★★★ 4
Good watch for daily regular wear
Color: Black/White/Silver-Tone, Color: Black/White/Silver-Tone
The item was delivered 2 days earlier than the estimated time. The watch was not well secured. It had fell out inside the small box, but fortunately there was no external or internal damage to the watch. The watch looks nice. I like the simple and clean design of it. The second hand ticking sound is noticeable if your surrounding is very quiet, but it doesn’t bother me cause I have had analog watches before and I the ticking sound is on a similar decibel level. Just be aware this watch is not made in the US (see pictures), but it’s not a dealbreaker for me. The strap gets the job done. I have a small wrist and the strap size is perfect. However, be aware the quality of the strap is very standard. There was noticeable frizz at the end of the strap and around the holes. Had to use a lighter to carefully trim the frizz (hence minus 1 star).
Timex claimed the battery life is 3 years, but that remain to be seen.
Overall, this is a good watch for every day regular wear. For more former wear you can just change the watch band.
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Reviewed in the United States on June 3, 2025
★★★★★ 5
I love it!
Color: Black/White/Silver-Tone
I have had this watch for 1.5 years now. I bought it for a trip to Venice, which operates on military time. It was hard to find a nice analog watch with military time...this one was the clear winner! I LOVE IT! It has always been super-dependable for correct time, and the little light makes it readable every time!! The band it comes with looks very nice, but it's really not a permanent band. I bought a silver expandable band on amazon, and I am super-happy with the combo. Do check it over for defects and have them replace it if anything's wrong (I did this initially because the light stopped working) but don't be afraid to try them again. They will take care of you.
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Reviewed in the United States on March 3, 2026
★★★★★ 5
Great little watch that I am. happy to recommend.
Color: Black/White/Silver-Tone
I kept searching for a good simple hardworking, easy-to-read watch and Amazon kept leading me to these no name nurses watches. Well they did not last. Finally I got smart and searched by putting Timex watch and found this little beauty. This watch is perfect. It's easy to read, it has a glow light so I can check it in the dark, seems to be waterproof, and it takes a licking and keeps on ticking. It even looks nice.
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Reviewed in the United States on July 6, 2025
★★★★★ 3
Strap fabric fraying around holes after 2 days. Could have been perfect with better strap fabric.
Color: Black/White/Silver-Tone
Exactly the kind of watch I’ve been looking for. For me, it would be the perfect watch. It looks great and is lightweight enough that I don’t notice it on my wrist. Except the watchband fabric seems rather cheap and is fraying around the holes after only 2 days of wearing it. I can’t see how it’s going to last even a year, and I’m unable to find a replacement strap in the correct width.
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Reviewed in the United States on November 3, 2025
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