A family owned automotive company in Newcastle, Australia, making reliability-focused performance parts for enthusiast cars. Denstoj Rocker Retainers grew out of Denstoj Auto Centre.

<p>Denstoj Rocker Retainers is a family owned automotive company in Newcastle, NSW, Australia. We make reliability-focused performance parts for enthusiast cars, starting with Rocker Retainer kits for engines with floating rocker arms, and ship them worldwide.</p><p>Our motto is <strong>Push the limit. Not past it.</strong> The most fun car is the one that works, on the track, on the street and all the way home.</p><h3 id="is-denstoj-rocker-retainers-the-same-company-as-denstoj-auto-centre">Is Denstoj Rocker Retainers the same company as Denstoj Auto Centre?</h3><p>Yes. Denstoj Rocker Retainers grew out of Denstoj Auto Centre, our workshop in Carrington, Newcastle, family owned and operated since 1999. Owner Dennis has been a mechanic since the 1970s.</p><p>Our Rocker Retainers started on the race track. While supporting a customer&apos;s Toyota 86 in the Australian Toyota 86 Racing Series, we dealt with engine failures from dropped rockers before working out what was going on, so we engineered a fix. We&apos;ve been running our Rocker Retainers since 2019, on everything from daily drivers to race cars.</p><p>We&apos;ve since moved our focus to our Rocker Retainers. The workshop still services cars. See <strong>Do you still service cars?</strong></p><h3 id="what-do-you-make">What do you make?</h3><p>Rocker Retainer kits and valvetrain parts for the Subaru FA and FB, Toyota G16E-GTS, Nissan SR20 and Mitsubishi 4G63, with more engines in development. See <strong>Which engines do you make parts for?</strong></p><h3 id="who-do-you-sell-to">Who do you sell to?</h3><p>Enthusiast drivers, engine builders, workshops, tuners, race teams and distributors around the world. Trade customers can apply for an account. See <strong>Do you sell to workshops, engine builders and distributors?</strong></p>

Who is Denstoj?

Email is the best way to reach us: info@denstoj.com.au, or support@denstoj.com.au about an order. We reply within 24 hours, Monday to Friday. You can also message us on WhatsApp.

<p>We&apos;re a small team of engineers and mechanics in Newcastle, Australia, and a real person reads every message.</p>
<p><strong>We reply within 24 hours, Monday to Friday (excluding Australian public holidays).</strong></p>
<h3 id="email-the-best-way-to-reach-us">Email (the best way to reach us)</h3>
<ul>
<li>General questions: <a href="mailto:info@denstoj.com.au">info@denstoj.com.au</a></li>
<li>About an order you&apos;ve placed: <a href="mailto:support@denstoj.com.au">support@denstoj.com.au</a></li>
<li>Before you buy (fitment, quotes, waiting lists, trade): <a href="mailto:sales@denstoj.com.au">sales@denstoj.com.au</a></li>
</ul>
<p>Include your order number if you have one. For fitment or technical questions, tell us your vehicle, engine code and any modifications so we can give you a straight answer first time.</p>
<h3 id="whatsapp">WhatsApp</h3>
<p><a href="https://wa.me/61490107087">+61 490 107 087</a></p>
<h3 id="phone">Phone</h3>
<p><a href="tel:+61249622008">02 4962 2008</a> (international: +61 2 4962 2008). We&apos;re often in the workshop and can&apos;t always answer, so email or WhatsApp is quicker.</p>
<h3 id="workshop">Workshop</h3>
<p>12 Elizabeth Street, Carrington NSW 2294, Australia. Open Tuesday to Thursday, 8:00 am to 5:00 pm.</p>
<p>More ways to reach us are on our <a href="https://denstoj.com.au/pages/contact-us">Contact Us</a> page.</p>

How do I contact Denstoj?

We don't run a formal sponsorship programme, but we look at requests case by case. Email sales@denstoj.com.au with your car, build, events and social media links.

<p>We don&apos;t run a formal sponsorship programme, but we&apos;re always keen to hear about interesting builds and we look at each request case by case.</p>
<h3 id="how-to-ask">How to ask</h3>
<p>Email <a href="mailto:sales@denstoj.com.au">sales@denstoj.com.au</a> with:</p>
<ul>
<li>Your car and engine</li>
<li>Your build so far and what&apos;s planned</li>
<li>The events you compete in or attend (track days, time attack, hill climbs, club racing, drift)</li>
<li>Links to your social media, YouTube or build thread</li>
<li>What you&apos;re asking for, and what you can offer in return</li>
</ul>
<h3 id="what-to-expect">What to expect</h3>
<p>We&apos;re a small team and can only support a few builds, so we can&apos;t say yes to every request. If it&apos;s a good fit, we&apos;ll be in touch to talk through the details.</p>
<p>Don&apos;t hold off fitting Rocker Retainers while you wait to hear back. A dropped rocker costs far more than the kit.</p>
<p>Run a workshop, race team or parts business? See <strong>Do you sell to workshops, engine builders and distributors?</strong></p>

Do you sponsor vehicles?

Yes. Workshops, engine builders, tuners and race teams can apply for a trade account. Performance parts distributors can apply to stock Denstoj products.

<p>Yes. A lot of our parts go to people who build engines for a living.</p>
<h3 id="trade-accounts">Trade accounts</h3>
<p>For performance workshops, engine builders, machine shops, dyno tuners and race teams who fit our parts regularly.</p>
<p><a href="https://denstoj.com.au/pages/trade-application">Apply for a trade account</a></p>
<h3 id="distributors-and-partners">Distributors and partners</h3>
<p>For performance parts distributors and specialist retailers who want to stock Denstoj products in their market.</p>
<p><a href="https://denstoj.com.au/pages/partnership-application">Apply to become a partner</a></p>
<p>We&apos;ll review your application and get back to you. Questions first? Email <a href="mailto:sales@denstoj.com.au">sales@denstoj.com.au</a>.</p>
<h3 id="buying-from-a-distributor">Buying from a distributor</h3>
<p>If you&apos;ve bought Denstoj parts from a distributor or reseller, they handle your returns and warranty claims. Contact them first.</p>

Do you sell to workshops, engine builders and distributors?

Yes. Walk-in servicing and rego (pink slip) inspections are available Tuesday to Thursday, 8:00 am to 5:00 pm at our Carrington workshop. Other times are by private appointment.

<p>Yes. Denstoj Rocker Retainers grew out of Denstoj Auto Centre, and our Newcastle workshop still looks after cars.</p>
<ul>
<li><strong>Walk-in servicing and rego (pink slip) inspections:</strong> Tuesday to Thursday, 8:00 am to 5:00 pm</li>
<li><strong>Other times:</strong> by private appointment through <a href="mailto:service@denstoj.com.au">service@denstoj.com.au</a></li>
</ul>
<p>Workshop: 12 Elizabeth Street, Carrington NSW 2294.</p>
<p>Want a Rocker Retainer kit fitted to your 86 or BRZ? See <strong>Can Denstoj install the kit for me?</strong></p>

Do you still service cars?

denstoj

Trade and distributor accounts, and how to reach us.

Trade and contact

What is a Rocker Retainer?

Which engines do you make parts for?

What are the signs of a dropped rocker?

When is the best time to fit Rocker Retainers?

Do Rocker Retainers let me rev my engine higher?

Will stiffer valve springs fix the rocker problem?

Do Rocker Retainers work with aftermarket camshafts or turbos?

Why do Rocker Retainer kits cost what they do?

Can I buy the clips separately?

Can I install Rocker Retainers myself?

Why do FA and FB engines need Rocker Retainers?

Did the valve spring recall fix the rocker problem on the 86 and BRZ?

Which vehicles does the FA/FB Rocker Retainer Kit fit?

What's included in the FA/FB kit?

Do I need to remove the engine to fit the FA/FB kit?

How do I install the FA/FB kit?

What are the FA20 valve clearance specs?

Will Rocker Retainer clips cause ticking or extra wear?

Can Denstoj install the kit for me?

What other upgrades help protect an FA20 or FA24 engine?

Toyota 86/GR86, Subaru BRZ, WRX + more (FA/FB)

Why does the G16E-GTS need Rocker Retainers?

Which GR Yaris and GR Corolla models do the G16E-GTS kits fit?

G16E-GTS: hydraulic lash adjusters or solid lifters?

Which camshaft and valve springs should I run on my G16E-GTS?

How do I install the G16E-GTS kit?

Toyota GR Yaris/GR Corolla (G16E-GTS)

Why does the 4G63 need Rocker Retainers?

Which 4G63 Rocker Retainer kit do I need?

Do the 4G63 kits fit the Eclipse, Talon, Laser or Galant VR-4?

Why do the 4G63 kits include only clips and no lash adjusters?

How do I install 4G63 Rocker Retainers?

Mitsubishi Lancer Evolution (4G63)

Why does the SR20 need Rocker Retainers?

Which SR20 engines do Denstoj kits fit?

SR20: hydraulic lash adjusters or solid lifters?

How do I install the SR20 kit?

Nissan S13 / S14 / S15 / N15 (SR20)

Products and fitment

How much does shipping cost?

How long does delivery take?

Do you ship worldwide?

Will I have to pay import duties or taxes?

Can you lower the customs value or mark my order as a gift?

How do I track my order?

My order says delivered but it hasn't arrived

What if my parcel is lost in transit?

Can I pick up my order from your workshop?

When will my order ship?

Shipping and delivery

Where can I buy Denstoj parts?

Can I cancel my order?

Can I change my order or delivery address?

What currency are your prices in?

What payment methods do you accept?

Do you offer discount codes, sales or free shipping?

How do I sign in to my account?

Can I get a discount?

Orders

What's your return policy?

How do I return an item?

When will I get my refund?

Can I exchange an item?

What if my order arrives damaged or faulty?

What if I receive the wrong item?

Returns and refunds

What does your warranty cover?

How do I make a warranty claim?

Will fitting Rocker Retainers affect my car's factory warranty?

Warranty