How it should be from the factory. Improve the reliability of your Toyota G16E-GTS engine and rev with confidence! 

Drop-in replacements for hydraulic lash adjusters (13750-70020) that include a retaining groove for a clip to attach to the rocker. This adds a security mechanism if the rocker loses spring pressure due to a valve float/bounce/stick situation.

When the G16E-GTS first came out, we inspected the valvetrain and knew it would be a weak point. The rockers are floating, and we had experienced failures with a similar rocker setup in the FA20 engines in the Toyota 86 (which we have subsequently fixed). With the buzz around the GR Yaris, we started development on our rocker retainer solution, specific to the G16E-GTS engine. 

The best solutions are simple. It's a clip that attaches to the rocker and a groove in the hydraulic lash adjuster that 'catches' the rocker if the valve spring loses pressure for a split-second due to a valve float situation.

If you haven't seen this solution before, it's actually quite common. More expensive performance engines such as the B58 BMW engine in the Supra and Lexus' flagship 2UR-GSE 5.0-litre V8 in the LC500 and RC F run rocker retainers. It's important to know that this is not a fix for valve float; instead, it adds a security mechanism to reduce the chance of a rocker dislodging if the valve spring loses pressure for a split-second due to a valve float situation.

It's a no-brainer preventive measure when building a high-performance engine. These should be stock on every engine Toyota makes.

Why Choose Our Rocker Retainer Kit?

Engine rebuilds can cost thousands of dollars, often ranging between $5,000 to $10,000, depending on the extent of the damage. Parts alone, such as pistons, valves, gaskets, can add up quickly. Our Rocker Retainer Kit, is a fraction of that cost and offers peace of mind by preventing a potential catastrophic failure that could leads to an expensive rebuild. 

Protect your investment and drive with confidence knowing your engine is safeguarded.

The price is set in Australian dollars and will automatically convert based on your local currency hence it will fluctuate slightly day-to-day.

If you aren't 100% satisfied with your purchase, we'll provide you a refund within 30 days of receiving your rocker retainers.

Evolution Racing Spares aims to have fast turnaround time for processing and handling orders, and will always make every effort to get the order to you as soon as possible.

Small items: 1-3 Days via Express Post Satchel
Medium Sized Items: 2-3 working days via AusPost Express or Courier (Depending on location)

Large Items: 2-8 working days (Large items can only be sent via courier, and delivery time depends on both courier and location

- Delivery to rural or remote areas, NT, WA, and TAS may take longer.

- Express Post shipping is only valid to areas that fall within the express post zone and is not guaranteed.

- Evolution Racing Spares may use the quickest carrier/method for delivery regardless of the method chosen at checkout.

- Typical handling time for items that are in stock is approximately 24-48 hours, with delays during holiday periods and public holidays.

- Evolution Racing Spares is not responsible for lost or damaged orders when customers change the delivery instructions to "authority to leave."

All goods sold and work performed by Evolution Racing Spares come with a 3-month warranty with no questions asked.

In accordance with the Australian Consumer Law, we are not required to provide a refund or replacement if you change your mind.

You can choose a refund or exchange if an item has a major problem, including:

• A problem that would have stopped you from buying the item if you had known about it
• The item is unsafe
• The item is significantly different from the sample or description
• The item doesn't do what we said it would, or what you asked for and can't be easily fixed

Alternatively, you can choose to keep the item and we will compensate you for any drop in value.

• If the problem is not major, we will repair the item within a reasonable time.
• If the item is not repaired in a reasonable time, you can choose a refund or replacement.

Please keep your proof of purchase such as your receipt.