Machine gun click on start
CL Community Team
Joined: Feb 2001
Posts: 3,866
Likes: 394
From: Ohio
Do a search here for Optima battery, which has been discussed many times, since Optima does not list a direct replacement. My recollection is that the terminals are on the opposite sides for the SC, but I'm not sure.
One nice thing about the SC is that there is room in the tire storage area, or inside the wheel, if you have the spare in the trunk, for jumper cables. I have only needed them once or twice in the last 20 years, but when you need them, it is a major problem not to have them. And that does not count those times when you can help out a friend, or a stranger, or some hot babe who needs jumping. Plan ahead.
One nice thing about the SC is that there is room in the tire storage area, or inside the wheel, if you have the spare in the trunk, for jumper cables. I have only needed them once or twice in the last 20 years, but when you need them, it is a major problem not to have them. And that does not count those times when you can help out a friend, or a stranger, or some hot babe who needs jumping. Plan ahead.
Pole Position
Joined: Feb 2007
Posts: 2,090
Likes: 10
From: NM
i wrote them. this is what they said...
Hello Jason
Unfortunately, Optima does not offer an exact-fit replacement battery for your Lexus SC 430. You can measure the dimensions of your existing stock battery to see there’s an Optima that will work for your vehicle. Below is a link to the product specification page where you can find exact dimensions for all Optima batteries:
http://www.optimabatteries.com/optim...ical_specs.php
Alternately, you can check the internet enthusiast forums for your vehicle to see how others have done custom applications with Optima batteries.
If you are using an Optima battery in a custom application, it is important to consider the following:
Hood Clearance – There should be at least ¾” clearance between the top of the battery terminals and the underside of the hood. *
Trunk/Interior Mounting – If your battery is mounted inside the passenger compartment or trunk (common in many European makes) the battery must be vented to outside the vehicle. Optima group 27, 51, 78, 34C, and 31 batteries all have ports for connecting a vent hose.
Side Terminals – Optima 34/78, D34/78, 75/25 and D75/25 batteries have both top and side terminals. *If you are using one of these batteries in a vehicle that uses the top terminals, it is important to ensure that the side terminals can not come into contact with anything metallic (for example, the firewall or fender well), thereby causing a short. *We suggest keeping the post protectors on the terminals you are not using.
Battery Modifications – Cutting, drilling, trimming or otherwise modifying your Optima battery may present a safety hazard and will void the warranty.
Mounting – Your Optima battery must be securely mounted. *The terminals are not intended to be used to secure the battery. *Using the terminals in this way will damage the battery and void your warranty.
Thank you,
Daryl
Optima Customer Service
Hello Jason
Unfortunately, Optima does not offer an exact-fit replacement battery for your Lexus SC 430. You can measure the dimensions of your existing stock battery to see there’s an Optima that will work for your vehicle. Below is a link to the product specification page where you can find exact dimensions for all Optima batteries:
http://www.optimabatteries.com/optim...ical_specs.php
Alternately, you can check the internet enthusiast forums for your vehicle to see how others have done custom applications with Optima batteries.
If you are using an Optima battery in a custom application, it is important to consider the following:
Hood Clearance – There should be at least ¾” clearance between the top of the battery terminals and the underside of the hood. *
Trunk/Interior Mounting – If your battery is mounted inside the passenger compartment or trunk (common in many European makes) the battery must be vented to outside the vehicle. Optima group 27, 51, 78, 34C, and 31 batteries all have ports for connecting a vent hose.
Side Terminals – Optima 34/78, D34/78, 75/25 and D75/25 batteries have both top and side terminals. *If you are using one of these batteries in a vehicle that uses the top terminals, it is important to ensure that the side terminals can not come into contact with anything metallic (for example, the firewall or fender well), thereby causing a short. *We suggest keeping the post protectors on the terminals you are not using.
Battery Modifications – Cutting, drilling, trimming or otherwise modifying your Optima battery may present a safety hazard and will void the warranty.
Mounting – Your Optima battery must be securely mounted. *The terminals are not intended to be used to secure the battery. *Using the terminals in this way will damage the battery and void your warranty.
Thank you,
Daryl
Optima Customer Service
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