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

Mazda MIATA Battery
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Mazda MIATA Battery

Item #: MAR-8AM-U1R   |  In Stock


Price: $99.95

Price: $99.95

Best Value
1 Year Warranty
Brand New
100% Compatibility

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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: 25.00Lbs
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:
Buy Together and Save
Mazda MIATA Battery
Battery Tender Plus 021-0128: 12 Volt 1.25 Amp Battery Charger (Non-CEC)
Order Today and Keep Charging!
Total for Both Items: $149.90

Product Description

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.

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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Customer Reviews

388 Reviews | 4.7 out of 5
5 stars (289)
4 stars (91)
3 stars (4)
2 stars (2)
1 star (2)
Would recommend this product.
What our Customers are saying
Great Battery
March 6, 2020
by on March 6, 2020

Extremely fast shipping. Battery installed and works great. This is the only way to purchase a battery.

Would recommend to a friend?
Battery for 1990 Miata
February 19, 2020
by on February 19, 2020

Easy order, very fast shipment, and it fits perfectly in my 1990 Miata. Car started right up after installation.

Keokuk, Iowa
Would recommend to a friend?
Damn fine battery
February 12, 2020
by on February 12, 2020

Cranks my Miata like a storm, not an easy task with such long cables. Fit like a charm, it's a fine product. I would buy it again in a heartbeat.

Would recommend to a friend?
Battery & Tickler
January 20, 2020
by on January 20, 2020

I spoke to an actual person and ordered a small battery specifically for my Miata plus since one battery died probably having to do with the cold, even tho I started it once a week, I was told about this thing that keeps battery ready to start so I got a tickler to keep my battery charged . So far it works great. Keeps battery ready for startup. I'm using Miata 6 mos a yr.

Would recommend to a friend?
Mazda Miata battery
November 30, 2019
by on November 30, 2019

I would give this purchase a five star, but I feel like a rating will not be accurate until I have some knowledge of how long this battery will perform. The battery immediately started my car. The website for purchase was easy to navigate and my first impression is that the battery is a good value.

Powell, Tennessee
Would recommend to a friend?
Fits pefectly
November 28, 2019
by on November 28, 2019

Designed specifically to fit pre-2006 Miatas. OEM hold-down clamp works well but do not overtighten. I keep it on a Battery Tender since I do not drive the Miata frequently. Both AGMs and GELs are more expensive to product than other lead-acid batteries but should be the only ones used in a Miata. I own a 2004 MazdaSpeed with Turbo.

Would recommend to a friend?
Right fit and quick delivery
November 7, 2019
by on November 7, 2019

Got the battery next day and installed it in 10 minutes. Works like a charm.

Columbia, MD
Would recommend to a friend?