10539
Use collapsible tabs for more detailed information that will help customers make a purchasing decision.
Ex: Shipping and return policies, size guides, and other common questions.
The Crankcase Set (KE21SP) 74031-07 with Piston & Cylinder Set (KE21SP) 74031-04 is a precision-engineered replacement engine component designed for KE21SP nitro RC engines. This essential rebuild kit restores compression, engine alignment, and overall performance for hobby-grade RC vehicles.
Ideal for maintaining high-performance RC cars and racing models, this set ensures smooth operation and long-lasting durability.
The crankcase is the structural core of a nitro RC engine, housing the crankshaft and supporting internal engine components. The KE21SP Crankcase Set is manufactured with precise machining and durable alloy construction to maintain perfect alignment and reliable sealing during high-speed operation.
Included in this package is the matched piston and cylinder set, designed to restore compression and improve throttle response in worn engines. This matched assembly ensures proper sealing and efficient combustion, allowing your RC engine to deliver consistent power and stable tuning.
Together, these components form a complete rebuild solution for KE21SP nitro engines commonly used in high-performance RC cars and racing buggies. Whether your engine has suffered wear from extended racing or requires routine maintenance, this set helps bring it back to peak condition.
Installation is straightforward for hobbyists familiar with RC engine maintenance. Once installed and properly tuned, the engine regains smooth acceleration, improved reliability, and longer service life, making it perfect for both competitive racing and regular hobby use.
· Designed specifically for KE21SP nitro RC engines
· Includes crankcase set and matched piston & cylinder assembly
· Precision-machined alloy crankcase for accurate engine alignment
· High-quality piston and cylinder for restored compression and power
· Direct-fit replacement for worn or damaged engine components
· Durable construction suitable for high-performance RC car racing
· Ideal for engine rebuilds, maintenance, and performance restoration
· Compatible with hobby-grade nitro RC cars using KE21SP engines
· 1 × Crankcase Set (KE21SP) – 74031-07
· 1 × Piston & Cylinder Set (KE21SP) – 74031-04
At Havoc Hobby Private Limited, we supply authentic hobby-grade RC parts and accessories trusted by enthusiasts and racers. Every product is carefully selected to ensure compatibility, durability, and performance. Whether you are repairing, upgrading, or maintaining your RC car, you can count on reliable parts and professional service from a trusted hobby retailer.
To ensure that your order reaches you in the fastest time and in good condition, we only ship through reputed courier agencies. While we shall strive to ship all items in your order together, this may not always be possible due to product characteristics, or availability.
However, we will inform you before doing it. You may track the shipping status of your order on our website, by clicking at Track your Order section. Please note all items (including gifts) will be shipped with an invoice mentioning the price, as per Indian Tax Regulations.
Products with LITHIUM CONTENT will be shipped via SURFACE/ROAD.
HAVOC HOBBY will NOT BE RESPONSIBLE for orders with
SHIPPING PARTNERS
We use BLUE DART/ FedEx to ship our products to your destination depending upon destination address.If BLUE DART has no access to destination address then FedEx will be used & vice versa. Most BLUE DART preferably covers PAN INDIA.
DOMESTIC SHIPPING PARTNERS :
INTERNATIONAL SHIPPING PARTNERS :
SHIPPING TIME / DELIVERY TIME
We make our best efforts to ship your order to next day of order placed. We ship on week days (Monday to Friday), excluding public holidays. Though we can guarantee a delivery time of 7-10 working days to anywhere in India, it is totally beyond our control. Each shipping companies have their own methods, intermediate transit locations etc. and the delivery time is not predictable. Please plan your order allowing sufficient time for the delivery instead of last-minute orders.
Due to the nature of hobby, we DO NOT provide any kind of warranty/guarantee/OR WILL NOT TAKE BACK any kind of products sold at www.havochobby.com /.in (HAVOC HOBBY).
Although we assure you all of the products are maintained through a strict QC from manufacturer itself. If you have any technical query after your purchase, you can directly call us or WhatsApp us on (+91) 9535545654. We will try our best to solve the query for the same.
Frequent questions on Return Policy:
QUE:- My product is completely working but of no use to me will HAVOC HOBBY accept return?
ANS:- Due to the nature of hobby, we DO NOT provide any kind of warranty/guarantee/OR WILL NOT TAKE BACK any kind of products sold at www.havochobby.com /.in (HAVOC HOBBY).
QUE:I have purchased one product through courier and during transit, it got damaged. Will HAVOC HOBBY accept return?
ANS:- Please note that Havoc Hobby Center has a different section to do professional strong packing. The team will send the images and videos of the products and packing prior to the dispatch. Any damage during the transit will be the responsibility of the customer as we dont have control on any courier service. If customer has any difference of opinion in this matter shall be arranged their own pick up service
QUE:- I have purchased one product which is sealed , since I purchased wrongly I need to exchange the product
ANS:- HAVOC HOBBY CENTER may not exchange / accept return the item once sold.
The Havoc Hobby team is a group of passionate hobby enthusiasts who are dedicated to providing our customers with the best possible shopping experience. From our knowledgeable and friendly staff to our extensive range of high-quality products, we take pride in everything we do. Our team is made up of hobby experts who are always on hand to offer advice and guidance on everything from model building techniques to remote control vehicle maintenance. We're constantly updating our knowledge of the latest trends and products in the hobby industry, and we're committed to staying at the forefront of this ever-evolving field. At Havoc Hobby Toy Store, our team is the heart and soul of our business, and we're always ready to help our customers discover the joy of hobbies
