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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £19.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £19.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £7.99 | 3 to 5 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £7.99 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £7.99 | 7 to 10 working days |
High-performance starter batteries must deliver reliable cranking power across a wide range of temperatures and operating conditions, particularly in tuned, modified, and demanding street applications. The Optima Red Top 8003-251 is an absorbed glass mat starter battery engineered specifically to meet these requirements, providing strong, consistent starting performance where conventional flooded batteries may fall short.
Optima's proprietary Spiral Cell AGM technology arranges pure lead plates in a tightly wound cylindrical cell configuration. This construction eliminates free electrolyte, delivers low internal resistance, and produces a high, stable discharge rate – resulting in the 815A cold cranking amp rating that underpins the battery's starting capability across temperature extremes." The 8003-251 operates at 12V with a 50Ah capacity (C20 rating) and measures 254mm × 175mm – 200mm including terminal height. It weighs 18kg and is fitted with SAE post terminals in a standard positive-left (polarity 0) arrangement. Hold-down type is B00. This unit is compatible with start-stop technology – verify suitability against the vehicle label before fitment. No direct cross-reference data is provided; confirm compatibility prior to ordering. No additional variants of this SKU are currently listed. This battery is supplied with a 2-year manufacturer's warranty against defects in materials and workmanship. "Standard delivery: 1–3 working days within UK mainland. 30-day returns.
The OPTIMA REDTOP high-performance AGM Battery is designed for starter applications. Its ideal for tuned and street cars, and other high-performance applications. Its even powerful enough to start generators while having small space requirements.
Key Feature:Engineered for modern passenger vehicles, providing reliable starting power, voltage stability, and long-term durability to support daily commuting and standard automotive electrical demands.
Uses:PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specialising in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalogue of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
Fitment Warning:You must check your current battery against the specifications of this battery before ordering to ensure that this is the correct battery for your vehicle. Check battery technology, dimensions, terminal type, polarity, capacity (AH) and cranking performance (CCA). We cannot guarantee correct fitment under any circumstances.
| Brand | Optima Batteries |
|---|---|
| Voltage | 12V |
| Capacity AH (C20) | 50Ah |
| Cold Cranking Amps (EN) | 815A |
| L × W × H | 254mm × 175mm × 200mm |
| Warranty period | 2 Years |
| Weight (Kg) | 18 |
| Capacity AH (C5) | |
| Capacity AH (C10) | |
| Capacity AH (C100) | |
| Marine Cranking Amps (MCA) | |
| Watt-Hours (WH) | |
| Length (mm) | 254 |
| Width (mm) | 175 |
| Height Inc. Terminal (mm) | 200 |
| Terminal Placement | 0 |
| Terminal Type | 1 |
| Hold Down | B00 |
| Case Size | |
| ETN Number | |
| TTNR |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Expert Guidelines for Preserving Your Heavy Equipment Battery Heavy machinery, including forklifts, bulldozers, and excavators, relies on robust batteries to minimize downtime and maximize operational availability. These batteries must endure even more challenging conditions than typical automotive batteries. Moreover,...
Standard Delivery: £7.99
Delivery Estimate: 3 to 5 working days
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| Technical Specification | |||||
|---|---|---|---|---|---|
| PRODUCT NUMBER | YBX9027 | EK508 | EK454 | EK457 | LF027 |
| Voltage | 12 | 12 | 12 | 12 | 12 |
| Capacity (AH) | 60 | 50 | 45 | 45 | 60 |
| Hold Down | B3 | ||||
| Cold Cranking Amps (EN1) | 640 | 800 | 380 | 380 | 680 |
| Terminal Type | T1 | 1 | |||
| Length | 242 | 260 | 237 | 237 | 242 |
| Width | 175 | 173 | 127 | 127 | 175 |
| Height | 190 | 206 | 227 | 227 | 190 |
| Show More | |||||
A. The Optima Red Top 8003-251 is rated at 815A CCA measured to the EN standard, making it well suited to high-performance and modified engine applications that demand strong, reliable starting power.
A. The battery measures 254mm in length, 175mm in width, and 200mm in height including the terminal. Please verify these dimensions against your vehicle's battery tray before ordering.
A. The RTR4.2 uses SAE post terminals with a standard positive-left polarity arrangement (polarity code 0, terminal type 1). Confirm your vehicle's terminal layout matches before fitment.
A. The AGM technology used in this battery supports start-stop functionality in principle; however, suitability depends on the specific vehicle. You must verify compatibility against the vehicle's battery specification label before fitting this unit.
A. This battery uses hold-down type B00. Ensure your vehicle's battery mounting system is compatible with this hold-down configuration prior to installation.
A. The battery has a rated capacity of 50Ah measured at the C20 discharge rate. This figure reflects the total charge the battery can deliver over a 20-hour period under standard test conditions.
A. The Red Top uses Optima's SpiralCell absorbed glass mat (AGM) construction, in which pure lead plates are wound in a tight spiral. This eliminates free liquid electrolyte, reduces internal resistance, and enables the high cranking output required for tuned and performance applications.
A. No formal IP rating is published for this product. The AGM construction means there is no free electrolyte, which offers inherent resistance to vibration and spillage, but installation in fully exposed or submerged environments is not specified by the manufacturer.
A. The battery is covered by a 2-year manufacturer's warranty against defects in materials and workmanship from the date of purchase. Retain proof of purchase for any warranty claim.
A. This battery is dispatched via standard parcel delivery and arrives within 1–3 working days to UK mainland addresses. A 30-day returns policy applies – contact PartsForMachines within 30 days of receipt if you need to arrange a return.
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