Mazda MIATA Battery
Item #: MAR-8AM-U1R   |    In Stock

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Mazda MIATA Battery

Item #: MAR-8AM-U1R   |  In Stock


Today's Price: $149.95
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Price: $149.95

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1 Year Warranty
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Product Specifications for Mazda MIATA Battery

BM Part #: MAR-8AM-U1R
Made In: U.S.A.
Voltage: 12 Volt
Capacity: 25 Ah
Type: AGM
Battery Size: Group U1R
Length: 7 3/4"
Width: 5 1/8"
Height: 7 1/4"
Cold Cranking Amps: 320 CCA
Shipping Weight: 25.45Lbs
Warranty: 1 Year
  • Made in the USA. Why it matters:
    • Superior craftmanship; rigorously tested; high-quality parts.
  • This Marathon Miata AGM battery fits all Mazda Miatas from 1990 through 2005 with correct polarity (battery location is in the trunk of the vehicle).
    • If your Miata has its battery located under the hood, this is not the correct replacement battery.
  • Fully Charged out of the box and easy to install.
  • Sealed, Maintenance-Free with a Vibration Resistant Design.
  • Environmentally friendly: 100% recyclable, leakproof, and spillproof.
  • Built-in vent tubes for O.E. (Original Eqiupment) vent hose attachment.
    • Vent tubes use 1/4" inch OD vacuum tubing.
  • BCI Designation: U1
  • Replaces Panasonic S46A24L (some modification may be required)
Frequently Bought Together:
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Total for Both Items: $239.90

Product Description

Free Standard Shipping!

Order today and receive free standard shipping on your Mazda MIATA Battery. Only valid in the contiguous 48 states and not valid with any other offer. Physical address required (No PO Boxes).

Premium quality absorbed glass mat technology (AGM) is ideal for the Mazda Miata. The Marathon Miata AGM Battery was designed for more than performance; it was designed for the enthusiast. Completely spillproof and leakproof; frequent replacement and high maintenance are over! The AGM technology increases power while improving driver and environmental safety. The key to this technology is the highly porous microfiber separators, which completely absorb and trap the electrolyte. Molded top and side connection terminals provide versatility, increased strength and durability. The Marathon AGM Battery provides the most advanced power and value in the industry.

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Our replacement Miata batteries are sealed, maintenance free AGM rechargeable batteries. Due to their construction, they do not require any ventilation, can be mounted in any orientation, and do not require maintenance.

The battery features two vent tubes to attach your original vent hoses. These are not required for installation, but are offered to give you a place to attached your original hoses. Some modification may be necessary.

Cross Reference

The Mazda MIATA Battery has been cross-referenced to be compatible with or replace these OEM part numbers and models:
  • YearsMakeModelEngine
  • 1990MazdaMX-5 MiataL4 1.6L
  • 1991MazdaMX-5 MiataL4 1.6L
  • 1992MazdaMX-5 MiataL4 1.6L
  • 1993MazdaMX-5 MiataL4 1.6L
  • 1994MazdaMX-5 MiataL4 1.8L
  • 1995MazdaMX-5 MiataL4 1.8L
  • 1996MazdaMX-5 MiataL4 1.8L
  • 1997MazdaMX-5 MiataL4 1.8L
  • 1998MazdaMX-5 MiataL4 1.8L
  • 1999MazdaMX-5 MiataL4 1.8L
  • 2000MazdaMX-5 MiataL4 1.8L
  • 2001MazdaMX-5 MiataL4 1.8L
  • 2002MazdaMX-5 MiataL4 1.8L
  • 2003MazdaMX-5 MiataL4 1.8L
  • 2004MazdaMX-5 MiataL4 1.8L
  • 2005MazdaMX-5 MiataL4 1.8L
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  • Canadian Tire MOT46A24L
  • Carquest 8AMU1R
  • Deka 8AMU1R
  • Duracell AGMU1P
  • Duracell SLIU1RT
  • Exide MIATA-60
  • Federated APU1RM
  • Ferguson 8AMU1R
  • Fisher APU1RM
  • Interstate MT-MX-5
  • Magna Power MPS46A24L
  • Mighty MIATAP
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  • NAPA 7581R
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  • Parts Master APU1RM
  • Parts Plus MIATAS
  • Perfect Start MIATA
  • Resource Power APU1RM
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  • Truck Pride APU1RM
  • World Source One (WSO) AMU1R

Customer Reviews

425 Reviews | 4.7 out of 5
5 stars (321)
4 stars (94)
3 stars (4)
2 stars (4)
1 star (2)
Would recommend this product.
What our Customers are saying
Miata Battery 8AMU1R
December 25, 2021
by on December 25, 2021

I just put this in the car (2002 Miata) today, and was able to start the car. Can't say much about the long term usage yet. Very quick delivery, I got it a few days earlier than I expected. The price was about the same as everywhere else. The reason I gave it two stars is because it's a vented battery (just like the stock battery), but the vents on the battery are round tubes - the stock battery uses rectangular vent tubes. The rectangular tube fittings do not fit on this battery. I ended up putting little pieces of vacuum tubing on the round battery vent tubes so the rectangular tubes fit. Also, the battery has some kind of funky castings on top of it so that the battery hold down bracket does not fit well. I'll have to remember to check the battery regularly to make sure it is still fastened down and that the vent tubes are still connected. It just occurred to me that I will probably try to grind the castings off of the top of the battery so that the hold down bracket fits better.

Would recommend to a friend?
Smooth purchasing
December 21, 2021
by on December 21, 2021

The battery was well packed with cushions and arrived sooner than expected.

It’s been only 3 weeks but the engine starts fine in the cold morning.

Would recommend to a friend?
Miata AGM battery
November 30, 2021
by on November 30, 2021

I bought a Marathon AGM battery for my 1990 Miata.

Pete's Miata
Would recommend to a friend?
Repeat buyer
November 22, 2021
by on November 22, 2021

First one lasted 7+ years sitting outside the entire time. May not even be dead now as the problem turned out to be the fuel pump. Wish it wasn't 50% more than the first time I bought one but what can you do?

Santa Clara CA
Would recommend to a friend?
Miata Battery
November 9, 2021
by on November 9, 2021

I just bought this to replace the identical battery that I purchased from battery mart 7 years ago.The other battery was still working fine.I usually replace the battery every 5 years but I stretched it out ...

Would recommend to a friend?
AGM battery
October 10, 2021
by on October 10, 2021

Package was well cushioned and strong. Arrived quickly. After one hour on battery charger it was fully charged to 2 amp.

Would recommend to a friend?
Very satisfied
October 5, 2021
by on October 5, 2021

Came as expected with no problems. Would order from them again!

Would recommend to a friend?