27F Interstate Battery
Replacement Battery - Tough to Find :(
Pole Position
Joined: Oct 2004
Posts: 328
Likes: 2
From: Texas
I was a bit surprised when I took my 2004 GX in recently for a pre-vacation check-up and they said my battery was not in good shape. I asked how much it would be to replace it and they said "oh thats under warranty...it won't cost a thing". It's hard to beat that price and I do not have an extended warranty.
Thread Starter
Lead Lap
Joined: Jan 2007
Posts: 684
Likes: 5
From: In the garage...
24F will work...... but it's only applicable in WARM climates
27F is applicable for both warm or cold
Did Lexus really put in 2 types of batteries?
Even if one came w/ a 24F, replacing w/ a 27F will not hurt one tiny bit - probably would be better. Based on CCAs, no sense cutting short what you might need someday as Murphy's Law shall prevail..... My OEM Panasonic battery was definitely 27F series. I'd recommend people replace w/ what [size] came stock.
Incidentally, I'm surprised a 24F fit w/out cable extension(s). That was not my experience when I replaced w/ an Optima 34R (which is the same size IIRC). Details?
Thread Starter
Lead Lap
Joined: Jan 2007
Posts: 684
Likes: 5
From: In the garage...
Yes 27F is longer than 24F.
According to every parts store and battery website I went to, The OE group size for the Lexus GX470 is 27F. Sears, yeah the sharpest knife in the retail (and automotive) drawer
, says 24F is ok...... in warm climates but recommends the 27F. Are they all wrong? 
I didn't replace w/ a 27F in (b/c I chose Optima) but IIRC my OEM battery was 12 7/8" or very close and I'm sure the tray could handle it (I'll measure tomorrow).
You didn't answer my question.....
Did your 24F fit w/out cable extensions?
My Optima 34R required a 2" extension on the ground and it measures in at 10" (my issue was how far in the posts are mounted on optima R so may not have been an issue w/ you?).
The other problem people may run into is a lot of 24F batteries have less CCAs than 27F. I think the lowest 27F I saw was 650 CCA's while I've seen some 24F ~ 500CCAs. In a warmer climates, not an issue, but where it's cool let alone cold.... 24F could certainly leave you SOL....
According to every parts store and battery website I went to, The OE group size for the Lexus GX470 is 27F. Sears, yeah the sharpest knife in the retail (and automotive) drawer
, says 24F is ok...... in warm climates but recommends the 27F. Are they all wrong? I didn't replace w/ a 27F in (b/c I chose Optima) but IIRC my OEM battery was 12 7/8" or very close and I'm sure the tray could handle it (I'll measure tomorrow).
You didn't answer my question.....
Did your 24F fit w/out cable extensions?
My Optima 34R required a 2" extension on the ground and it measures in at 10" (my issue was how far in the posts are mounted on optima R so may not have been an issue w/ you?).
The other problem people may run into is a lot of 24F batteries have less CCAs than 27F. I think the lowest 27F I saw was 650 CCA's while I've seen some 24F ~ 500CCAs. In a warmer climates, not an issue, but where it's cool let alone cold.... 24F could certainly leave you SOL....
Lead Lap
Joined: Sep 2006
Posts: 477
Likes: 3
From: ca
I just bought the OEM replacement from Lexus on Saturday and it's definately a 27F. Cost $110 bucks and was exactly the same size as the Panasonic that I pulled out. I wonder why yours is a 24F? Maybe they did put two different battaries in these trucks.
Pit Crew
Joined: Jun 2007
Posts: 143
Likes: 10
From: CA
What's the brand and model of battery that you got from Lexus? Was the $110 installed or just for the battery alone?
Thanks,
Gene
Driver
Joined: Apr 2015
Posts: 66
Likes: 4
From: Essex County, Ontario
24F will work...... but it's only applicable in WARM climates
27F is applicable for both warm or cold
Did Lexus really put in 2 types of batteries?
Even if one came w/ a 24F, replacing w/ a 27F will not hurt one tiny bit - probably would be better. Based on CCAs, no sense cutting short what you might need someday as Murphy's Law shall prevail..... My OEM Panasonic battery was definitely 27F series. I'd recommend people replace w/ what came stock.
Incidentally, I'm surprised a 24F fit w/out cable extension(s). That was not my experience when I replaced w/ an Optima 34R (which is the same size IIRC). Details?
27F is applicable for both warm or cold
Did Lexus really put in 2 types of batteries?
Even if one came w/ a 24F, replacing w/ a 27F will not hurt one tiny bit - probably would be better. Based on CCAs, no sense cutting short what you might need someday as Murphy's Law shall prevail..... My OEM Panasonic battery was definitely 27F series. I'd recommend people replace w/ what came stock.
Incidentally, I'm surprised a 24F fit w/out cable extension(s). That was not my experience when I replaced w/ an Optima 34R (which is the same size IIRC). Details?
The only battery offered at Costco for this vehicle is the 24F.
I'm curious where you get the info about the 24F for warm climates?
All the web sites but Costco seem to say 27F for this vehicle.
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
Lexus NX 350h: A Fuel-Sipping Secret Hot Hatch???
Michael S. Palmer
5 Best & 5 Worst Lexus Daily Drivers
Joe Kucinski
Top 5 Hottest Lexus & Toyotas in 2026 (Hardest To Buy)
Brett Foote
2026 Lexus IS 350 F Sport Review: The Last of Its Kind Still Rocks
Michael S. Palmer
Top 10 Most Confusing Things Lexus Has Ever Done!
Joe Kucinski
2026 Lexus ES Review: Lexus Re-Embraces Founding Principles
Michael S. Palmer
10 Lexus Bargains That are Cheaper Than a New Toyota RAV4
Joe Kucinski
8 Weirdest Things Lexus Has Ever Built
Verdad Gallardo
10 Lexus Designs That Have Aged Like Fine Wine
Verdad Gallardo
Pit Crew
Joined: Aug 2016
Posts: 105
Likes: 18
From: Smyrna, GA
Lead Lap
Joined: Feb 2014
Posts: 3,658
Likes: 818
From: NC
Not every Costco carries the 27F.
I just buy them at the dealer. It's like $20-30 more than Autozone and I don't have to reenter my radio stations and calibrate the auto-up windows, since they use a jump box to preserve the settings.
There's only 2 battery makers anyway - the differences are mostly branding
Chip H.
I just buy them at the dealer. It's like $20-30 more than Autozone and I don't have to reenter my radio stations and calibrate the auto-up windows, since they use a jump box to preserve the settings.
There's only 2 battery makers anyway - the differences are mostly branding
Chip H.
Pole Position
Joined: Feb 2013
Posts: 2,392
Likes: 555
From: WPG, MB
Not every Costco carries the 27F.
I just buy them at the dealer. It's like $20-30 more than Autozone and I don't have to reenter my radio stations and calibrate the auto-up windows, since they use a jump box to preserve the settings.
There's only 2 battery makers anyway - the differences are mostly branding
Chip H.
I just buy them at the dealer. It's like $20-30 more than Autozone and I don't have to reenter my radio stations and calibrate the auto-up windows, since they use a jump box to preserve the settings.
There's only 2 battery makers anyway - the differences are mostly branding
Chip H.
Pit Crew
Joined: May 2020
Posts: 168
Likes: 31
From: MARYLAND
I went to Walmart and got an Everstart 27F 24 month for $49 pre covid. My wife's car needed a battery for her Nissan Rouge , prices are nuts , so I picked up an Exide 35 at Home Depot for $99. About 1/3rd less than most auto stores. I keep a 1000w jump starter charged just in case.
Thread
Thread Starter
Forum
Replies
Last Post
JCtx
SC430 - 2nd Gen (2001-2010)
17
Feb 19, 2008 09:13 AM
