GrimmSpeed
GrimmSpeed Radiator Cap Black Type A (1.3 Bar) For Subaru
* Images may be a representation and may not reflect the actual product.
Product Details
Optimize Your Subarus Cooling System Without Breaking the Bank! Lets face it engine cooling technology can sometimes seem like a dark magic that is impossible for us mortals to understand. That being said, it is well known that raising the pressure in your cooling system has a direct correlation to cooling performance.
The factory 1. 1 Bar (16 PSI) cap performs fine for daily driving with a system full of anti-freeze, but for those who are looking to push their Subaru harder or run on the track may be running an anti-freeze/water blend (or in many cases just straight distilled water) as it provides better heat transfer and dissipation than your standard coolant or antifreeze.
The downside to running water or a blend of antifreeze/water is a lower boiling point and thus you would easily fill up (and in some cases overflow) your expansion tank within a couple of hot laps. Upgrading the radiator cap to one with a higher pressure rating is the easiest (and by far the Most economical) solution for solving this issue and keep your cooling fluid of choice where it belongs in your engine and radiator.
The GrimmSpeedHigh Pressure 1. 3 Bar Radiator Cap is a high quality and way to maximize your cooling systems potential and upgrade the looks under your hood without breaking the bank!
Quick Specs
Fitment:All Subaru Radiators and/or Expansion Tanks Many (but Not all) Nissan, Mitsubishi, Honda, Mazda, and Toyota Models
Fitment Note Not suited to replace the 1-way earless cap on the STI radiators, but will work perfectly on the upper expansion tank!
Installation couldnt be easier! Just twist the factory cap a little Over half a turn counter-clockwise with remove and replace with your new GrimmSpeed Cap! Ensure that your engine is cool before Installing. Never remove your radiator cap immediately after driving your vehicle!
Quick Specs
- 1. 3 Bar/18. 9 PSI Pressure Rated
- Increases Cooling System Efficiency
- Electro-coated
- Stamped Steel Construction
- Heavy-Duty Silicone Seal Understated Look
- Eliminates Ugly OEM Yellow Badge Manufactured in Japan
Fitment:All Subaru Radiators and/or Expansion Tanks Many (but Not all) Nissan, Mitsubishi, Honda, Mazda, and Toyota Models
Vehicle Fitment
Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.
Product Specs
- Brand
- GrimmSpeed
- Part Number
- 113061a
- Catalog Number
- 001858638
- Product Line
- Radiator Caps
- Category
- Cooling
- Type
- Radiator Caps
- UPC / Barcode
- 850037989867
- Weight
- 0.20 lb
- Freight / LTL
- No
Shipping & Availability
This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.
Inventory shown: 10 available as of 6/4/2026.
Manufacturer warranty and return policy details will display here when available. Please refer to the manufacturers website for warranty information.
Reviews & Questions
Real product feedback when available, plus quick ways to get fitment or product help.
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GrimmSpeed has as their philosophy three central fundamentals: innovation, manufacturing in the United States and providing their customers with an exceptional product. Accomplishing these things is no small task and GRIMMSPEED is up to the challenge. The company’s adherence to the goal of providing products that are either completely new or providing something new in an existing product has allowed them to create phenomenal products that are trouble free. GrimmSpeed specializes in manufacturing aftermarket parts for Subaru, Mitsubishi, MazdaSpeed and Hyundai here in the United States.
In order to be successful in the genre of aftermarket performance products in an extremely competitive marketplace a proprietor must have something special and GRIMMSPEED has just that. Since its inception in 2006 GRIMMSPEED has accomplished just that with its nonpareil line of expertly engineered aftermarket products such as gaskets, pulleys, phenolic spacers, porting and polishing and boost controllers to name a few.You might ask yourself how a company that in its infancy worked from a garage designing parts for Subarus could have mushroomed into the company it is today in such a short time and now provide innovative products for Mitsubishi, MazdaSpeed and Hyundai. Well the answer is a simple one but a necessary one for any successful company. They have the desire to accomplish things, the expertise need to do it and the dedication to customer satisfaction so important in any marketing endeavor.GRIMMSPEED has as their philosophy three central fundamentals: innovation, manufacturing in the United States and providing their customers with an exceptional product. Accomplishing these things is no small task and GRIMMSPEED is up to the challenge. The company’s adherence to the goal of providing products that are either completely new or providing something new in an existing product has allowed them to create phenomenal products that are trouble free.The company is determined to keep its company and its manufacturing in the United States and consequently utilizes the talent in its home state of Minnesota whenever possible. They are true to the term “Made in the USA” and are proud of it. This is a testament to their integrity and desire to provide their customers with a top notch product you can feel confident in putting on your prized vehicle. GrimmSpeed knows their customers are their livelihood and they provide the service necessary to see that they keep those customers coming back for more. One example of such accomplishments in the aftermarket field is the Subaru Catted Downpipe perfected to replace your OEM downpipe with its two very restrictive catalytic converters. This single high flow unit can efficaciously improve your car’s performance yet allow you to protect the environment with a catalytic converter and a high-flow 300 cell catalytic converter as an optional addition.GRIMMSPEED knows that the small things can make all the difference in your car’s performance and to that end they designed and developed the Stock Downpipe to Catback Adapter for cars like your Subaru. The company took into consideration the fact that your car’s OEM downpipe will not seal properly with a typical flat gasket because these are prone to disintegration from the elements and thus result in the inability to get a good seal. They tackled this problem and now offer you the catback adapter that will outlast your car. A comparison of GRIMMSPEED downpipes and adapters with other manufactured adapters will lead you to the conclusion that the company has recognized the problem of exhaust leaks and found the perfect solution.These are just some examples of the thought that goes into every GRIMMSPEED downpipe and adapter and the determination to “build a better mousetrap” that is cornerstone of the company’s philosophy. If you are in the market for an aftermarket improvement in your Subaru, Mitsubishi, MazdaSpeed and Hyundai, you don’t need to look any further than GRIMMSPEED.
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Contact us with questions before ordering
California Residents: Prop 65 WARNING: This product MAY contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov
California Residents: TIRE WARNING: LMPerformance will not ship Tires to California.
Legal: Some or all of these parts may not comply with Federal, State, Province, and/or Local laws, ordinances, and regulations. Buyer takes all responsibility to ensure that any modifications or upgrades that have done conform to all applicable laws and regulations for road use, especially pertaining to safety and emissions. LMPerformance is not responsible for buyer not complying with Federal, State, Province, and/or Local laws, ordinances, and regulations. This policy shall be in force for all past, current, and future purchases from LMPerformance, Inc. LMPerformance will not ship ANY non-CARB compliant products to California where California requires products to be CARB certified such as Catalytic Converters and Induction Kits.
Free Shipping: Please note FREE Shipping refers to shipping within the contiguous continental US only. All other locations extra. Some items that require Truck Freight Delivery will require a Truck Freight surcharge. This surcharge is still a discounted shipping amount that is lower then the actual truck freight shipping charge that is charged to LMP. LMP will try to still give the lowest price possible for truck freight items.
Images: Images may be a representation and may not reflect the actual product. Examples would be SPEC stage 3 clutch kits which all use the same photo.
TYPOS: LMPerformance tries to present the best most accurate information on our website. Sometimes we get mistakes in product information sent from vendors such as typos. We can not be responsible for these typos, if you see something that does not look right please let us know before ordering so we can double check for you first. LMPerformance will not pay for typos in any way, monetarily or otherwise.
Price Errors: In the event that a product has mistakenly been listed at an incorrect price, We reserve the right to refuse or cancel any orders placed for product listed at the incorrect price. We reserve the right to refuse or cancel any such orders whether or not the order has been confirmed and your account charged. If your payment type has already been charged for the purchase and your order is cancelled, a full refund to your orignial payment method in the amount of the incorrect price will be issued.
Special Order ITEMS: Some items are Special Ordered and may not be returnable, or even cancellable as they are going into production specifically because you ordered them. Special Ordered items can have a 5-35% cancelation fee.
Cancellations: Instock orders cannot be canceled due to our automated ordering & fast shipping system. To keep our prices low, all cancelations are subject to a 5% cancelation fee to cover transaction processing fees. We reserve the right to charge up to a 10% cancellation fee for cancelled orders due to merchant fees, Special Order fees and the cost of processing and shipping orders.When you request a cancellation of an order or a part, please note that it may take time for a manufacturer to cancel an order if the order is drop-shipped. We also have to confirm that the product has not shipped. If the product has shipped then this must be processed as a return.Also note that sometimes products ship more quickly than expected, so we recommend that you do not purchase alternative products until receiving final confirmation of the cancellation.
Returns: We cannot accept returns on parts that have been used or installed. No returns will be accepted after 30 days. All Returns must be in original packaging. Prior authorization must be given before any return can be made. Up to a 25% Restocking Fee may apply. Special Orders may be subject to Additional Manufacturer Restock Fees as well. Shipping cost will not be refunded.Hoods as well as PCM Programmers may not be returned unless defective and only for replacement. ALL returns must be first filed using our online form found here: https://www.lmperformance.com/returns.
Lost Order Claims All lost order/package claims must be made within 5 days of the shipping date or tracking information delivery date. All claimes made after this date will not be accepted due to Shipping companies policies of filing loss claims.
Damaged Items or Incorrect Items: Please contact us right away if your item has been damaged in shipping or are incorrect. Please note that we will ship replacement items the same method of shipping the order was originally placed for. LMPerformance can not ship packages overnight at our cost if the original shipping was not also overnight. Claims must be filed in order for replacement parts to be shipped.
Warranties:Any warranty claims must be placed with the manufacturer. All of the products sold by LMPerformance, regardless of the manufacturer, are designed for Racing and Performance applications. Many of our manufacturers offer NO WARRANTY on their products, either stated or implied, due to the unusual stresses placed on the parts and because we have no control over how they are installed and used. Many of these products are designed for off-road use only and are not legal for use on public highways. If you have a question about the warranty on a specific product, please e-mail or call us. Buyer assumes all risk and liability associated with these products.
Installation: We are not responsible for or any costs associated with the installation or the improper installation of any products. Purchaser assumes the risk associated with the installation of products. We, along with the manufacturer of each product are not responsible for any direct or indirect damage to the vehicle, personal, or costs incurred from the use of products.























